Meridia's Monument

At an additional cost, sacrifice any number of creatures
Meridia's Monument enters with X energy
counters, where X it the sacrificed creatures'
combined power
{w}, Remove an energy counter: Target permanent
gains protection from black untill end of turn
{w}, Remove 3 energy counters: Meridia's
Monumentdeals 3 damage to all black creature.
If creatures are destroyed this way, exile
them instead.