(Bog Timberland isn't a spell.)
At the beginning of your upkeep, Bog Timberland deals 2 damage to target creature you control.
Sacrifice a land: You gain 1 life.
: Add to your mana pool. Return Bog Timberland to its owner's hand.
: Add 
to your mana pool. Return Bog Timberland to its owner's hand.
