Crumbling Necropolis enters the battlefield tapped.
: Add , , or to your mana pool.
: Add to your mana pool.
, , Sacrifice a creature: Keldon Necropolis deals 2 damage to target creature or player.
Defender (This creature can't attack.)
Exile a creature card from your graveyard: Put X +0/+1 counters on Necropolis, where X is the exiled card's converted mana cost.
Flying
Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it.