Swarmkeep

{t}: Add {b} or {g} to your mana pool.
{b/g}, {t}: Put a 1/1 green and black Insect creature
token onto the battlefield.
{b/g}{b/g}, {t}: Sacrifice an Insect creature. Create X
1/1 green and black Insect creature tokens, where
X is the sacrificed creature's power.
The Swarmkeep is the heart of the hive, where the
brood is nurtured and the colony is defended.