Great card to let your fellow heroes go to their Alter-ego. It doesn't specify it needs to be an attack boost. You can trigger while Villain schemes to prevent up to 3 threat. Plus 3+1 damage, that's a great value.
공격. 대비. 기술.
히어로 난입(공격): 강화 카드가 뒤집힐 때, 곡예를 버림 → 뒤집힌 강화 카드에 있는 강화 아이콘을 모두 무효화. 이렇게 무효화한 강화 아이콘마다 빌런에게 피해 1점을 입힘.
Black Widow(블랙 위도우) #6. Black Widow #7-8.
It's a Hero Interrupt card, so you can't use it in Alter-Ego form to prevent threat. — Thebof · 1
That's not what OP stated. They just highlighted the fact that, though it is an attack card, it can be used when the villain thwarts, and can help when teammates are in alter-ego (an example of when the villain would thwart). — Feral9 · 8