{Mycosynth golem}+ 4 {Darksteel Citadel} + 4 {Memnite} + 4 {Myr Battlesphere}
Tap all your myr defending player takes 16 damage plus attacking with Battleshaper.
Gosh, you're really digging the myrs today :)
Well I created an artifact deck out of spare Mirrodin cards and just. I really love artifact cards lol oh hey btw I'm getting oh 15 mana per turn without even tapping lands and this creature is a 15/15+ I can spend mana to give it +1/+1 and "when it attacks defending player reveals cards from the top of their library until they reveal a land card and put the revealed cards into their graveyard. Equipped creature gets +1/0 for each card revealed this way until end of turn.