This isn't a fair fight at all. It sounds like the barbarian player doesn't have much insight into material outside of core or even outside of being a melee beatstick. He probably doesn't know many arcane spells or their ramifications. You won't need much strategy to win. The ideas in this thread have definitely gone overboard for what he has in store.
Originally Posted by Oberron
So glitterdust/web/shatter/fly and a bunch of core only stuff easily wins this
It's just a newbie barbarian who've never even smelled an arena, let alone been on one.