I think I'm also going to go with raising the damage to 10 for now. The 'walker is a d8 HD class that is also very SAD, so they should be able to take it. Sound good?
Midterms were a killer, but hopefully this class will be 100% finished in the next day or so. One thing I worry about is white's "ultra-spell": Gate as their 2nd Legend Boon. It seems way, way too strong...but giving them Summon Monster IX or Heavenly Host instead seems awfully weak. I'm okay with white being a bit stronger just because I think it's the weakest color (spell and boon-wise) otherwise, but is Gate too much? Any good alternatives you guys can suggest? And any good suggestions for green? Right now it's ultra spell is probably going to be Shambler, Shapechange, or Greater Whirlwind but I'm open to ideas .