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BT4-048 WarGreymon
WarGreymon
BT4-048
SR
00
Lv. 6
Play: 12
3
11000 DP
When Attacking Once Per Turn You may add the top card of your security stack to your hand to unsuspend this Digimon and have 1 of your opponent's Digimon get -6000 DP for the turn.
Yellow Digimon
Mega
Vaccine
Dragonkin

Q1: Do I always have to activate this card's effect when I attack?

No, you can choose not to.

Q2: Can I activate this card's When Attacking effect if I have no cards left in my security stack?

No. If you can't add cards from your security stack to your hand, you can't activate the effect.

Q3: I attack with this Digimon, then activate its When Attacking effect to unsuspend it and give 1 of my opponent's Digimon -6000 DP. If I attack again on the same turn, can I give 1 of my opponent's Digimon an additional -6000 DP?

No. The effect has Once Per Turn, so it doesn't activate on any attacks past the first one.

EN
Official English Card Listworld.digimoncard.com
Lv.6 WarGreymon      BT4-048  SR
Mega | Vaccine | Dragonkin

[When Attacking] [Once Per Turn] You may add the top card of your security stack to your hand to unsuspend this Digimon and have 1 of your opponent's Digimon get -6000 DP for the turn.
A
Official English (Asia) Card Listen.digimoncard.com
Lv.6 WarGreymon      BT4-048  SR
Mega | Vaccine | Dragonkin

[When Attacking] [Once Per Turn] You may add the top card of your security stack to your hand to unsuspend this Digimon and have 1 of your opponent's Digimon get -6000 DP for the turn.
W
DCG Wikidigimoncardgame.fandom.com
Lv.6 WarGreymon      BT4-048  SR
Mega | Vaccine | Dragonkin

[When Attacking] [Once Per Turn] You may add the top card of your security stack to your hand to unsuspend this Digimon and have 1 of your opponent's Digimon get -6000 DP for the turn.
JP
Official Japanese Card Listdigimoncard.com
Lv.6 ウォーグレイモン      BT4-048  SR
究極体 | ワクチン種 | 竜人型

【アタック時】[ターンに1回]自分のセキュリティを上から1枚手札に加えることで、このデジモンをアクティブにし、このターンの間、相手のデジモン1体のDPを-6000する。