Koromon

Card Number
EX9-001
Rarity
C
Category
Digi-Egg
Level
2
Block Icon
05
Colour
Red
Form
In-Training
Type
Lesser/DM/Ver.1
Inherited Effect

When Attacking Once Per Turn This Digimon with face-down digivolution cards may digivolve into a [Ver.1] trait Digimon card in the hand with the digivolution cost reduced by 1.

Q&A
Date
Question

When digivolution would occur by this card's [When Attacking] effect, can I activate EX9-070 [Meat]'s <Delay> effect and reduce the digivolution cost by 3?

Answer

No, you can't.

EX9-070 [Meat]'s <Delay> effect is a [Main] effect timing, so you can only declare its activation when there is no unresolved processing. You can't declare activation of EX9-070 [Meat]'s <Delay> effect while this card's [When Attacking] effect is still processing.

Releases
Genre
Booster Pack
Release Name
VERSUS MONSTERS [EX-09]
Official Product Page
Date
Notes
EXTRA BOOSTER VERSUS MONSTERS [EX-09]
Alternate Arts

en EX9-001 P1 EXTRA BOOSTER VERSUS MONSTERS [EX-09]

International Arts

ja EX9-001 エクストラブースター VERSUS MONSTERS [EX-09]

ja EX9-001 P1 エクストラブースター VERSUS MONSTERS [EX-09]

zh-Hans EX9-001 VERSUS MONSTERS【EX-09】

zh-Hans EX9-001 P1 VERSUS MONSTERS【EX-09】

GET /cards/en/EX9-001

JSON:API

{
    "data": {
        "type": "card",
        "id": "\/cards\/en\/EX9-001",
        "attributes": {
            "level": 2,
            "faqs": [{
                "date": "2025-06-25",
                "question": "When digivolution would occur by this card's [When Attacking] effect, can I activate EX9-070 [Meat]'s <Delay> effect and reduce the digivolution cost by 3?",
                "answer": "No, you can't. \nEX9-070 [Meat]'s <Delay> effect is a [Main] effect timing, so you can only declare its activation when there is no unresolved processing. You can't declare activation of EX9-070 [Meat]'s <Delay> effect while this card's [When Attacking] effect is still processing."
            }],
            "language": "en",
            "inherited-effect": "[When Attacking] [Once Per Turn] This Digimon with face-down digivolution cards may digivolve into a [Ver.1] trait Digimon card in the hand with the digivolution cost reduced by 1.",
            "notes": "EXTRA BOOSTER VERSUS MONSTERS [EX-09]",
            "parallel-id": 0,
            "image": "https:\/\/images.heroi.cc\/cards\/en\/EX9-001.webp",
            "form": "In-Training",
            "rarity": "C",
            "category": "digi-egg",
            "block-icon": 5,
            "color": ["red"],
            "number": "EX9-001",
            "name": "Koromon",
            "type": "Lesser\/DM\/Ver.1"
        },
        "relationships": {
            "alternate-arts": {
                "data": [{
                    "type": "card",
                    "id": "\/cards\/en\/EX9-001_P1"
                }]
            },
            "international-arts": {
                "data": [{
                    "type": "card",
                    "id": "\/cards\/ja\/EX9-001"
                }, {
                    "type": "card",
                    "id": "\/cards\/ja\/EX9-001_P1"
                }, {
                    "type": "card",
                    "id": "\/cards\/zh-Hans\/EX9-001"
                }, {
                    "type": "card",
                    "id": "\/cards\/zh-Hans\/EX9-001_P1"
                }]
            },
            "releases": {
                "data": [{
                    "type": "release",
                    "id": "\/releases\/en\/ex-09"
                }]
            }
        }
    },
    "included": [{
        "type": "card",
        "id": "\/cards\/en\/EX9-001_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/en\/EX9-001_P1"
        },
        "meta": {
            "notes": "EXTRA BOOSTER VERSUS MONSTERS [EX-09]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/ja\/EX9-001",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ja\/EX9-001"
        },
        "meta": {
            "notes": "\u30a8\u30af\u30b9\u30c8\u30e9\u30d6\u30fc\u30b9\u30bf\u30fc VERSUS MONSTERS [EX-09]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/ja\/EX9-001_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/ja\/EX9-001_P1"
        },
        "meta": {
            "notes": "\u30a8\u30af\u30b9\u30c8\u30e9\u30d6\u30fc\u30b9\u30bf\u30fc VERSUS MONSTERS [EX-09]"
        }
    }, {
        "type": "card",
        "id": "\/cards\/zh-Hans\/EX9-001",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/zh-Hans\/EX9-001"
        }
    }, {
        "type": "card",
        "id": "\/cards\/zh-Hans\/EX9-001_P1",
        "links": {
            "self": "https:\/\/api.heroi.cc\/cards\/zh-Hans\/EX9-001_P1"
        }
    }, {
        "type": "release",
        "id": "\/releases\/en\/ex-09",
        "links": {
            "self": "https:\/\/api.heroi.cc\/releases\/en\/ex-09"
        },
        "meta": {
            "name": "VERSUS MONSTERS [EX-09]"
        }
    }],
    "links": {
        "self": "https:\/\/api.heroi.cc\/cards\/en\/EX9-001"
    }
}

Refer to the API Documentation.

<heroicc-card>

HTML Web Component

<heroicc-card lang="en" data-card-id="EX9-001" data-category="digi-egg">
    <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="EX9-001 Koromon" src="https://images.heroi.cc/cards/en/EX9-001.webp" />
    </picture>
    <span class="credit">
        <a href="https://heroi.cc/cards/en/EX9-001">EX9-001 Koromon</a>
        <span> on </span>
        <a href="https://heroi.cc">Heroicc</a>
    </span>
</heroicc-card>

Refer to the documentation for configuration options.

EX9-001 KoromonEX9-001 Koromon on Heroicc