[Baalz]

Hero blades are a good use for iron crafters, particularly in CBM 1.7 because you get more out of your forging bonus (knocking 1 gem off a 5 gem item's price isn't too impressive). Having a bunch of storm generals (optionally buffed by quickness and iron warriors) flying forward on turn one (even in a storm) will make most any SCs disintegrate. With quickness & iron warriors they've got some staying power to, protection in the high 20s (depending on cold scale) with a 19 defense (plus stars). Not bad at all for 7 gems and 35 gold. They can generally even take a stray thunderstrike hit with their 75% SR, though you'll want to buff that if you're in a big fight and really dropping the sky.