Muk, King of Old Jewels

When Muk, King of Old Jewels enters the battlefield, create a colorless Treasure artifact
token with "{t}, Sacrifice this artifact: Add one
mana of any color to your mana pool." for each
Goblin creature you control.
Whenever you sacrifice a Treasure, Goblin
creatures you control get +1/+0 until end of
turn.
"Can I interest you in a brooch?"