Copperline Cavern enters the battlefield tapped.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
: Return Copperline Cavern to its owner's hand.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.: Return Copperline Cavern to its owner's hand.
