702.51c: A creature tapped to pay for mana in a spells total cost this way is said to have convoked that spell
Two things to remember about Armament Corp: first, Khans is toned-down by today's power standards, so the best uncommons stack up quite well
Gallia lets women in on the fun of being a satyr
This allows you to quickly build up your auras, and since Light-Paws is so easy to cast, it's not uncommon to have enough power and protection to win the game before anyone else even has a board presence set up.
The final card from Major Spoilers is Chandra's Pyrohelix, which for one generic and one Red mana deals two damage divided among one or two target Creatures and/or players
The alternative commander is Kotis, Sibsig Champion, which, once per turn, lets you cast creature spells from the graveyard if you pay their original cost and exile three cards from there as an additional cost