mtg myr cards Battlesphere : Toys & Games Artifact Creature Myr Kinsmith

Brainstone comes close and doesnt have the restriction of a colored mana cost

Bladewing the Risen, Mana-Charged Dragon The best Dragons in the deck, though Bladewing the Risen is best if you have a fairly high volume of Dragons in the deck, which may or may not be the case in a Kaalia deck

Lunar Convocation's first ability cares whether you gained life this turn, not how your life total changed

What your opponent cant do however is redirect either of Cranial Platings abilities to a Spellskite, as both of them say creature you control. Try to throw off your opponents Ravager math as much as you can by holding some artifacts that wouldnt be doing much good in play anyway