Artwork variants
2 printings of EX9-001. They are the same card for deck building — any of them fills the slot.
Koromon
- Level
- Lv.2
- Form
- In-Training
- Traits
- Lesser/DM/Ver.1
- Set
- EX9
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.
Track this card
Record how many copies of EX9-001 you own and DigiFoundry shows which are in decks, which are up for trade and which are actually available.
Rulings for Koromon
Official clarifications published for this card.
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?
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.
13 June 2025
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?
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.
13 June 2025
