[Micah]

Dedas: roll over and die, MA Ulm is horrible =)

Seriously though, buff your army with some alteration (marble warriors/legions of steel on Ulmish troops gives a somewhat ridiculous protection value...marble warriors is the same level as fog warriors, if you don't have it just throw more meat in the way instead. Wooden warriors might fly too if you've got some indie nature mages to spam it for decent coverage...regardless of how you do it, make a meat shield) and spam magma eruption with smiths after summon earth power. Your troops should do a great job soaking damage from the ogres and knights once they're buffed, and magma eruption will cut through mistform just fine. Make sure you have more magma than he has lightning and you should win pretty easily (unless your Ulmish troops decide to rout. They like doing that)