Extinction
From Archon Arcana - The KeyForge Wiki
Extinction • Mars • Action • Rare • Play: Choose a creature. Destroy that creature and each creature that shares a trait with it. Gain 1 chain. • Artist: Natalie Russo • Card Number: AoA:196
Play: Choose a creature. Destroy that creature and each creature that shares a trait with it. Gain 1 chain.
AoA 196
Artist: Natalie Russo
Commentary
If an ability says "Choose a creature," the Active Player may choose a Friendly or Enemy creature when resolving the effect.
Source: Rulebook