(: Add or to your mana pool.)
When Unstable Reef enters the battlefield, return a land you control to its owner's hand.
: Unstable Reef becomes a 2/2 blue Merfolk creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Unstable Reef becomes a 2/2 blue Merfolk creature until end of turn. It's still a land.
