Charge of the Battle Legions

Creatures you control get +2/+1 and gain goldsword (Whenever this creature deals combat damage to a player, create a colorless artifact token named Gold with "Sacrifice this artifact: Add one
mana of any color to your mana pool.") until end of turn.
Sacrifice five Golds: Return Charge of the Battle Legions from your graveyard to your hand.
"Charge!"