Twin Volco Golems

When Twin Volco Golems enters the Battlefield, create a red 3/2 Golem Artifact Creature token
named Twin Volco Golems.
{t}: Sacrifice all creatures named Twin Volco
Golems and add {r} mana to your mana pool
equal to the combined power and toughness
of all creatures sacrificed this way.
Use this mana only to cast artifacts this turn.