Community

Petrahydrox
Creature — Weird
( blue or red mana can be paid with either blue mana or red mana .)
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.
Rulings (3)
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).
Jan 12, 2024
Petrahydrox's ability resolves before the spell or ability that caused it to trigger. It resolves even if that spell or ability is countered.
Jan 12, 2024
Petrahydrox's ability triggers only if it's on the battlefield when it becomes the target of a spell or ability.
Jan 12, 2024
Legality
Formats by platform
Commander
Competitive
Community & retro
Printings (2)
RVR#209$0.16
Ravnica Remastered
GPT#148$0.08
Guildpact