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