Beast Within
Instant
Destroy target permanent. Its controller creates a 3/3 green Beast creature token.
"Monsters dwell in every heart. We only think civilization tames them." ―Euphemia, Nexus watcher
Illustrated by
Neon Dynasty Commander#114UncommonEnglishLegality
Rulings
Jul 1, 2013
If the permanent is still a legal target but is not destroyed (perhaps because it regenerated or has indestructible), its controller still gets the Beast token.
Mar 19, 2021
If the target permanent is an illegal target by the time Beast Within tries to resolve, the spell won't resolve. No player creates a Beast token. If the target is legal but not destroyed (most likely because it has indestructible), its controller does create a Beast token.