Armor Wars [Marvel Super Heroes]

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — You may draw a card for each artifact you control. If you do, each opponent draws a card.
II — Artifact spells you cast this turn cost {1} less to cast.
III — This Saga deals X damage to target opponent, where X is the greatest mana value among artifacts you control.