The Tarvok, Relicstealer Horde

Whenever The Tarvok deals combat damage to a player, create an artifact token named Gold. It has 'Sacrifice this artifact: Add one mane of any color to your mana pool.'
{1}, Sacrifice an artifact: creatures you control get +1/+0 until end of turn.
{r}{r}, Sacrifice a gold token: create a 3/3 ogre creature token.