Quantumon

Card Number
LM-020
Rarity
SEC
Category
Digimon
Level
6
Block Icon
03
Colour
Yellow Green
Play Cost
13
DP
13000
Form
Mega
Attribute
Data
Type
Fairy
Digivolution Requirements
Digivolve Cost
5
Colour
Yellow Green
Level
5
Category
Digimon
Effect

When Digivolving By placing 1 Digimon on top of its owner's security stack, reveal all of your opponent's security cards, and place 1 card among them on top of your opponent's deck. Shuffle the rest and return them to the security stack.

Start of Opponent's Turn Declare 1 card category. Then, reveal the top card of your opponent's deck. If it's of that category, this Digimon isn't affected by that category's effects, other than this Digimon's effects, for the turn. Return the revealed cards to the top or bottom of your opponent's deck.

Errata
Date
Correction

[Start of Opponent's Turn] Declare 1 card category. Then, reveal the top card of your opponent's deck. If that card is of the declaredit's of that category, this Digimon isn't affected by theat category's effects, of that card categoryther than this Digimon's effects, for the turn. Return the revealed cards to the top or the bottom of your opponent's deck.

Q&A
Date
Question

What does "declare 1 card category" in this card's [Start of Opponent's Turn] effect mean, exactly?

Answer

It refers to the four card categories: Digi-Egg cards, Digimon cards, Tamer cards, and Option cards.

You declare 1 of these categories at the start of your opponent's turn for this card's effect, your opponent reveals the top card of their deck, and if the revealed card is in the declared category, this Digimon will be unaffected by effects from cards in the declared card category.

Date
Question

Can I declare Digi-Egg cards for this card's [Start of Opponent's Turn] effect?

Answer

Yes, you can.

However, Digi-Egg cards aren't used in decks, therefore revealed cards won't be in that category if you declare it.

Date
Question

I declared Tamer cards for this card's [Start of Opponent's Turn] effect, and a Tamer card was revealed from the deck.

In such cases, is this Digimon unaffected by inherited effects on Tamer cards in digivolution cards of my opponent's Digimon?

Answer

No, it's affected by such effects.

Inherited effects on Tamer cards in digivolution cards of Digimon are treated as Digimon effects.

Date
Question

I used this card's [Start of Opponent's Turn] effect to prevent Digimon effects from affecting this card.

At such times, does this card still gain the inherited effects on Digimon cards in its digivolution cards?Apr. 25, 2025 Updated

Answer

Yes, it gains inherited effects.

Date
Question

I declared Digimon cards for this card's [Start of Opponent's Turn] effect. If a Digimon card is revealed from the deck, is this Digimon unaffected by [Security] effects activated by Security Digimon?

Answer

Yes, it isn't affected.

[Security] effects on Security Digimon are treated as Digimon effects, so the "this Digimon isn't affected by the effects of your opponent's Digimon" effect prevents such effects from affecting this Digimon.

Date
Question

Can I use this card's [When Digivolving] effect to return my [EX2-007 Mother D-Reaper] from the battle area to the security stack, reveal all cards in my opponent's security stack, and place 1 card among them at the top of my opponent's deck?

Answer

Yes, you can.

If your [EX2-007 Mother D-Reaper] is chosen as the target to place in the security stack, it will ultimately be placed at the bottom of the Digi-Egg deck instead of the security stack according to the rules, but it meets this card's "by placing 1 Digimon on top of its owner's security stack" condition. A card isn't actually added to the security stack, therefore effects such as "when a card is added to the security stack" don't trigger.

Date
Question

Can I use this card's [When Digivolving] effect to return my token played as a Digimon from the battle area to the hand, reveal all cards in my opponent's security stack, and place 1 card among them at the top of my opponent's deck?

Answer

Yes, you can.

If your token is chosen as the target to place in the security stack, it will ultimately be removed from the game instead of being placed in the security stack according to the rules, but it meets this card's "by placing 1 Digimon on top of its owner's security stack" condition. A card isn't actually added to the security stack, therefore effects such as "when a card is added to the security stack" don't trigger.

Date
Question

If I choose my [EX2-007 Mother D-Reaper] or token that is treated as a Digimon in the battle area as the target for this card's [When Digivolving] effect, it isn't placed in the security stack. In such cases, do "when a card is removed from the security stack" effects trigger because a card wasn't added to the security stack even though it normally should have been added?

Answer

No, it doesn't trigger.

Releases
Genre
Booster Pack
Release Name
EXCEED APOCALYPSE [BT15]
Official Product Page
Date
Notes
LIMITED PACK DIGIMON GHOST GAME [LM01]
Alternate Arts

en LM-020 P1 Special Limited Set

International Arts

ja LM-020 リミテッドカードパック デジモンゴーストゲーム [LM-01]

ja LM-020 P1 リミテッドカードパック トリッドヴァイス [LM-04]

zh-Hans LM-020 LIMITED BOOSTER【LM-01】

zh-Hans LM-020 P1 SPECAL BOOSTER RISING CONFLICT【SPC-01】

ko LM-020 프로모션 카드

GET /cards/en/LM-020

JSON:API

{
    "data": {
        "type": "card",
        "id": "\/cards\/en\/LM-020",
        "attributes": {
            "level": 6,
            "faqs": [{
                "date": "2024-03-28",
                "question": "What does \"declare 1 card category\" in this card's [Start of Opponent's Turn] effect mean, exactly?",
                "answer": "It refers to the four card categories: Digi-Egg cards, Digimon cards, Tamer cards, and Option cards. \nYou declare 1 of these categories at the start of your opponent's turn for this card's effect, your opponent reveals the top card of their deck, and if the revealed card is in the declared category, this Digimon will be unaffected by effects from cards in the declared card category."
            }, {
                "date": "2024-03-28",
                "question": "Can I declare Digi-Egg cards for this card's [Start of Opponent's Turn] effect?",
                "answer": "Yes, you can. \nHowever, Digi-Egg cards aren't used in decks, therefore revealed cards won't be in that category if you declare it."
            }, {
                "date": "2024-03-28",
                "question": "I declared Tamer cards for this card's [Start of Opponent's Turn] effect, and a Tamer card was revealed from the deck. \nIn such cases, is this Digimon unaffected by inherited effects on Tamer cards in digivolution cards of my opponent's Digimon?",
                "answer": "No, it's affected by such effects. \nInherited effects on Tamer cards in digivolution cards of Digimon are treated as Digimon effects."
            }, {
                "date": "2024-03-28",
                "question": "I used this card's [Start of Opponent's Turn] effect to prevent Digimon effects from affecting this card. \nAt such times, does this card still gain the inherited effects on Digimon cards in its digivolution cards?Apr. 25, 2025 Updated",
                "answer": "Yes, it gains inherited effects."
            }, {
                "date": "2024-03-28",
                "question": "I declared Digimon cards for this card's [Start of Opponent's Turn] effect. If a Digimon card is revealed from the deck, is this Digimon unaffected by [Security] effects activated by Security Digimon?",
                "answer": "Yes, it isn't affected. \n[Security] effects on Security Digimon are treated as Digimon effects, so the \"this Digimon isn't affected by the effects of your opponent's Digimon\" effect prevents such effects from affecting this Digimon."
            }, {
                "date": "2024-03-28",
                "question": "Can I use this card's [When Digivolving] effect to return my [EX2-007 Mother D-Reaper] from the battle area to the security stack, reveal all cards in my opponent's security stack, and place 1 card among them at the top of my opponent's deck?",
                "answer": "Yes, you can. \nIf your [EX2-007 Mother D-Reaper] is chosen as the target to place in the security stack, it will ultimately be placed at the bottom of the Digi-Egg deck instead of the security stack according to the rules, but it meets this card's \"by placing 1 Digimon on top of its owner's security stack\" condition. A card isn't actually added to the security stack, therefore effects such as \"when a card is added to the security stack\" don't trigger."
            }, {
                "date": "2024-03-28",
                "question": "Can I use this card's [When Digivolving] effect to return my token played as a Digimon from the battle area to the hand, reveal all cards in my opponent's security stack, and place 1 card among them at the top of my opponent's deck?",
                "answer": "Yes, you can. \nIf your token is chosen as the target to place in the security stack, it will ultimately be removed from the game instead of being placed in the security stack according to the rules, but it meets this card's \"by placing 1 Digimon on top of its owner's security stack\" condition. A card isn't actually added to the security stack, therefore effects such as \"when a card is added to the security stack\" don't trigger."
            }, {
                "date": "2024-03-28",
                "question": "If I choose my [EX2-007 Mother D-Reaper] or token that is treated as a Digimon in the battle area as the target for this card's [When Digivolving] effect, it isn't placed in the security stack. In such cases, do \"when a card is removed from the security stack\" effects trigger because a card wasn't added to the security stack even though it normally should have been added?",
                "answer": "No, it doesn't trigger."
            }],
            "digivolution-requirements": [{
                "level": 5,
                "category": "digimon",
                "color": ["green", "yellow"],
                "cost": 5
            }],
            "language": "en",
            "dp": 13000,
            "notes": "LIMITED PACK DIGIMON GHOST GAME [LM01]",
            "parallel-id": 0,
            "image": "https:\/\/images.heroi.cc\/cards\/en\/LM-020.webp",
            "play-cost": 13,
            "form": "Mega",
            "effect": "[When Digivolving] By placing 1 Digimon on top of its owner's security stack, reveal all of your opponent's security cards, and place 1 card among them on top of your opponent's deck. Shuffle the rest and return them to the security stack.\n [Start of Opponent's Turn] Declare 1 card category. Then, reveal the top card of your opponent's deck. If it's of that category, this Digimon isn't affected by that category's effects, other than this Digimon's effects, for the turn. Return the revealed cards to the top or bottom of your opponent's deck.",
            "rarity": "SEC",
            "errata": {
                "date": "2024-08-23",
                "error": "[Start of Opponent's Turn] Declare 1 card category. Then, reveal the top card of your opponent's deck. If that card is of the declared category, this Digimon isn't affected by the effects of that card category for the turn. Return the revealed card to the top or the bottom of your opponent's deck.",
                "correction": "[Start of Opponent's Turn] Declare 1 card category. Then, reveal the top card of your opponent's deck. If it's of that category, this Digimon isn't affected by that category's effects, other than this Digimon's effects, for the turn. Return the revealed cards to the top or bottom of your opponent's deck."
            },
            "category": "digimon",
            "attribute": "Data",
            "block-icon": 3,
            "color": ["yellow", "green"],
            "number": "LM-020",
            "name": "Quantumon",
            "type": "Fairy"
        },
        "relationships": {
            "alternate-arts": {
                "data": [{
                    "type": "card",
                    "id": "\/cards\/en\/LM-020_P1"
                }]
            },
            "international-arts": {
                "data": [{
                    "type": "card",
                    "id": "\/cards\/ja\/LM-020"
                }, {
                    "type": "card",
                    "id": "\/cards\/ja\/LM-020_P1"
                }, {
                    "type": "card",
                    "id": "\/cards\/ko\/LM-020"
                }, {
                    "type": "card",
                    "id": "\/cards\/zh-Hans\/LM-020"
                }, {
                    "type": "card",
                    "id": "\/cards\/zh-Hans\/LM-020_P1"
                }]
            },
            "releases": {
                "data": [{
                    "type": "release",
                    "id": "\/releases\/en\/bt15"
                }]
            }
        }
    },
    "included": [{
        "type": "card",
        "id": "\/cards\/en\/LM-020_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/en\/LM-020_P1"
        },
        "meta": {
            "notes": "Special Limited Set"
        }
    }, {
        "type": "card",
        "id": "\/cards\/ja\/LM-020",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ja\/LM-020"
        },
        "meta": {
            "notes": "\u30ea\u30df\u30c6\u30c3\u30c9\u30ab\u30fc\u30c9\u30d1\u30c3\u30af \u30c7\u30b8\u30e2\u30f3\u30b4\u30fc\u30b9\u30c8\u30b2\u30fc\u30e0 [LM-01]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/ja\/LM-020_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ja\/LM-020_P1"
        },
        "meta": {
            "notes": "\u30ea\u30df\u30c6\u30c3\u30c9\u30ab\u30fc\u30c9\u30d1\u30c3\u30af \u30c8\u30ea\u30c3\u30c9\u30f4\u30a1\u30a4\u30b9 [LM-04]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/ko\/LM-020",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ko\/LM-020"
        },
        "meta": {
            "notes": "\ud504\ub85c\ubaa8\uc158 \uce74\ub4dc"
        }
    }, {
        "type": "card",
        "id": "\/cards\/zh-Hans\/LM-020",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/zh-Hans\/LM-020"
        }
    }, {
        "type": "card",
        "id": "\/cards\/zh-Hans\/LM-020_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/zh-Hans\/LM-020_P1"
        }
    }, {
        "type": "release",
        "id": "\/releases\/en\/bt15",
        "links": {
            "self": "https:\/\/api.heroi.cc\/releases\/en\/bt15"
        },
        "meta": {
            "name": "EXCEED APOCALYPSE [BT15]"
        }
    }],
    "links": {
        "self": "https:\/\/api.heroi.cc\/cards\/en\/LM-020"
    }
}

Refer to the API Documentation.

<heroicc-card>

HTML Web Component

<heroicc-card lang="en" data-card-id="LM-020">
    <link rel="stylesheet" href="https://assets.heroi.cc/css/components/heroicc-card.css?v=4a563a5" />
    <script type="module" src="https://assets.heroi.cc/js/heroicc-card.js?v=4a563a5"></script>
    <picture>
        <img width="430" height="600" loading="lazy" alt="LM-020 Quantumon" src="https://images.heroi.cc/cards/en/LM-020.webp" />
    </picture>
    <span class="credit">
        <a href="https://heroi.cc/cards/en/LM-020">LM-020 Quantumon</a>
        <span> on </span>
        <a href="https://heroi.cc">Heroicc</a>
    </span>
</heroicc-card>

Refer to the documentation for configuration options.

LM-020 QuantumonLM-020 Quantumon on Heroicc