Copperline Cavern enters the battlefield tapped unless you pay .
, : Add , or to your mana pool. Copperline Cavern deals 1 damage to you.
: Copperline Cavern becomes a 2/1 green and black Bear creature until end of turn. It's still a land.
., 
: Add 
, 
or to your mana pool. Copperline Cavern deals 1 damage to you.: Copperline Cavern becomes a 2/1 green and black Bear creature until end of turn. It's still a land.
