(: Add or to your mana pool.)
At the beginning of your upkeep, Caves Den deals 2 damage to target creature you control.
: Caves Den becomes a 2/1 black and white Skeleton creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Caves Den becomes a 2/1 black and white Skeleton creature until end of turn. It's still a land.
