
Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, untap another target creature you control.
Breaching Hippocamp has 3 printings, first in Theros (2013). EDHREC ranks it #14,896 among Commander cards. It appears most in Helga, Skittish Seer decks (2,416 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.