Regulusmon

Card Number
BT21-077
Rarity
R
Category
Digimon
Level
5
Block Icon
05
Colour
Purple Red
Play Cost
7
DP
7000
Form
Ultimate
Attribute
Virus
Type
Evil Dragon
Digivolution Requirements
Digivolve Cost
4
Colour
Purple Red
Level
4
Category
Digimon
Effect

Digivolve Lv.4 w/[Gammamon] in text: Cost 3

On Play When Digivolving By trashing 1 card with [Gammamon] in its text from your hand, give 1 of your opponent's Digimon Collision and "Start of Your Main Phase This Digimon attacks." until their turn ends.

On Deletion You may play 1 [Canoweissmon] or 1 level 4 or lower Digimon card with [Gammamon] in its text from your trash without paying the cost.

Inherited Effect

On Deletion You may play 1 level 4 or lower Digimon card with [Gammamon] in its text from your trash without paying the cost.

Q&A
Date
Question

What does a card with "X in its text" refer to?

Answer

It refers to a card that contains the specified text or icon in its name, traits, effects, inherited effects, ⟨Rule⟩, digivolution requirements, DNA digivolution, DigiXros requirements, burst digivolve, App Fusion, Link, or Assembly requirements.

For example, a card with [Knightmon] in its text would include cards with the name [DarkKnightmon] and cards with the text [Knightmon] in their effects.

Date
Question

Can I use this card's [On Play] [When Digivolving] effect to give "[Start of Your Main Phase] This Digimon attacks" to a Digimon that isn't affected by effects?

Answer

You can give that effect to such Digimon, but if the Digimon isn't affected by effects upon the trigger timing, the gained effect won't trigger.

Date
Question

I chose my opponent's BT16-048 [TyrantKabuterimon] for this card's [On Play] [When Digivolving] effect.

If BT16-048 [TyrantKabuterimon] then attacks and is suspended at the start of the main phase, does its gained <Collision> activate?Sep. 5, 2025 Updated

Answer

No, <Collision> doesn't activate.

As soon as BT16-048 [TyrantKabuterimon] suspends, its [All Turns] effect prevents it from being affected by your effects, and <Collision> doesn't activate.

Releases
Genre
Booster Pack
Release Name
WORLD CONVERGENCE [BT-21]
Official Product Page
Date
Notes
BOOSTER WORLD CONVERGENCE [BT-21]
International Arts

ja BT21-077 ブースタ-パック WORLD CONVERGENCE [BT-21]

zh-Hans BT21-077 WORLD CONVERGENCE【BT-21】

GET /cards/en/BT21-077

JSON:API

{
    "data": {
        "type": "card",
        "id": "\/cards\/en\/BT21-077",
        "attributes": {
            "level": 5,
            "faqs": [{
                "date": "2025-06-25",
                "question": "What does a card with \"X in its text\" refer to?",
                "answer": "It refers to a card that contains the specified text or icon in its name, traits, effects, inherited effects, \u27e8Rule\u27e9, digivolution requirements, DNA digivolution, DigiXros requirements, burst digivolve, App Fusion, Link, or Assembly requirements. \nFor example, a card with [Knightmon] in its text would include cards with the name [DarkKnightmon] and cards with the text [Knightmon] in their effects."
            }, {
                "date": "2025-06-25",
                "question": "Can I use this card's [On Play] [When Digivolving] effect to give \"[Start of Your Main Phase] This Digimon attacks\" to a Digimon that isn't affected by effects?",
                "answer": "You can give that effect to such Digimon, but if the Digimon isn't affected by effects upon the trigger timing, the gained effect won't trigger."
            }, {
                "date": "2025-06-25",
                "question": "I chose my opponent's BT16-048 [TyrantKabuterimon] for this card's [On Play] [When Digivolving] effect. \nIf BT16-048 [TyrantKabuterimon] then attacks and is suspended at the start of the main phase, does its gained <Collision> activate?Sep. 5, 2025 Updated",
                "answer": "No, <Collision> doesn't activate. \nAs soon as BT16-048 [TyrantKabuterimon] suspends, its [All Turns] effect prevents it from being affected by your effects, and <Collision> doesn't activate."
            }],
            "digivolution-requirements": [{
                "level": 4,
                "category": "digimon",
                "color": ["purple", "red"],
                "cost": 4
            }],
            "language": "en",
            "inherited-effect": "[On Deletion] You may play 1 level 4 or lower Digimon card with [Gammamon] in its text from your trash without paying the cost.",
            "dp": 7000,
            "notes": "BOOSTER WORLD CONVERGENCE [BT-21]",
            "parallel-id": 0,
            "image": "https:\/\/images.heroi.cc\/cards\/en\/BT21-077.webp",
            "play-cost": 7,
            "form": "Ultimate",
            "effect": "[Digivolve] Lv.4 w\/[Gammamon] in text: Cost 3\n[On Play] [When Digivolving] By trashing 1 card with [Gammamon] in its text from your hand, give 1 of your opponent's Digimon \uff1cCollision\uff1e and \"[Start of Your Main Phase] This Digimon attacks.\" until their turn ends.\n[On Deletion] You may play 1 [Canoweissmon] or 1 level 4 or lower Digimon card with [Gammamon] in its text from your trash without paying the cost.",
            "rarity": "R",
            "category": "digimon",
            "attribute": "Virus",
            "block-icon": 5,
            "color": ["purple", "red"],
            "number": "BT21-077",
            "name": "Regulusmon",
            "type": "Evil Dragon"
        },
        "relationships": {
            "international-arts": {
                "data": [{
                    "type": "card",
                    "id": "\/cards\/ja\/BT21-077"
                }, {
                    "type": "card",
                    "id": "\/cards\/zh-Hans\/BT21-077"
                }]
            },
            "releases": {
                "data": [{
                    "type": "release",
                    "id": "\/releases\/en\/bt-21"
                }]
            }
        }
    },
    "included": [{
        "type": "card",
        "id": "\/cards\/ja\/BT21-077",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ja\/BT21-077"
        },
        "meta": {
            "notes": "\u30d6\u30fc\u30b9\u30bf\uff0d\u30d1\u30c3\u30af WORLD CONVERGENCE [BT-21]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/zh-Hans\/BT21-077",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/zh-Hans\/BT21-077"
        }
    }, {
        "type": "release",
        "id": "\/releases\/en\/bt-21",
        "links": {
            "self": "https:\/\/api.heroi.cc\/releases\/en\/bt-21"
        },
        "meta": {
            "name": "WORLD CONVERGENCE [BT-21]"
        }
    }],
    "links": {
        "self": "https:\/\/api.heroi.cc\/cards\/en\/BT21-077"
    }
}

Refer to the API Documentation.

<heroicc-card>

HTML Web Component

<heroicc-card lang="en" data-card-id="BT21-077">
    <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="BT21-077 Regulusmon" src="https://images.heroi.cc/cards/en/BT21-077.webp" />
    </picture>
    <span class="credit">
        <a href="https://heroi.cc/cards/en/BT21-077">BT21-077 Regulusmon</a>
        <span> on </span>
        <a href="https://heroi.cc">Heroicc</a>
    </span>
</heroicc-card>

Refer to the documentation for configuration options.

BT21-077 RegulusmonBT21-077 Regulusmon on Heroicc