Petrahydrox 

Creature — Weird
( 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.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL