Vaaera, the Steelshaper

Affinity for Artifacts
{3}{t}, sacrifice 3 artifacts you control: Create an artifact token named Darksteel Ring, it has indestructible and {t}: add three mana of any one
color.
As long as you control three or more Darksteel
Rings, other Artifacts you control have, {t}: Every opponent loses 1 life, you gain life equal to the life lost
this way.