Lux Artillery
Artifact
Whenever you cast an artifact creature spell, it gains sunburst. (It enters with a +1/+1 counter on it for each color of mana spent to cast it.)
At the beginning of your end step, if there are thirty or more counters among artifacts and creatures you control, this artifact deals 10 damage to each opponent.
Printings & Conditions (3)
Edge of Eternities Commander (EOC)(Commander: Edge of Eternities)#140Rare
Regular
Phyrexia: All Will Be One Commander (ONC)(Commander: Phyrexia: All Will Be One)#27Rare
Phyrexia: All Will Be One Commander (ONC)(Extended Art) (Commander: Phyrexia: All Will Be One)#41Rare