
( can be paid with either or .)
When this creature becomes the target of a spell or ability, return this creature to its owner's hand.
It departs through the streets' fissures with a sound like gravel pouring into a pond.
Illustrated by Anthony S. Waters
Released on February 3, 2006
Petrahydrox's ability triggers only if it's on the battlefield when it becomes the target of a spell or ability.
Petrahydrox's ability resolves before the spell or ability that caused it to trigger. It resolves even if that spell or ability is countered.
If the spell or ability that targets Petrahydrox has no other targets, it won't resolve (because it no longer has a legal target after Petrahydrox has returned to its owner's hand).