Lionmage Streetpatrol

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.")
{t}, Sacrifice two Golds: Create a 2/2 white Lion creature token.
"Being a streetpatrol officer is easy. Just follow a lion around the city, and no crime will be committed."