RulingHall of Heroes (rules 1.0–1.4)
Core Set questions: What happens if a boost card like Concussive Blast kills an ally with one remaining health left? Is the…
Question
What happens if a boost card like Concussive Blast kills an ally with one remaining health left? Is the attack undefended?
Answer
If a defending ally is defeated by a boost card effect, then the rest of the attack must be resolved as undefended.
— [Marvel Champions LCG Designer] Caleb Grace