don't purge! You do way to much dmg per hit to waste mana and time on purge. DPS is so damn high you should be one shotting people left and right.

Are you setting up totems?

Stop chain healing and use lesser heals. Better yet have your healer start to heal and you focus on dps? Do you use bloodlust? Are you using trinkets? Are you LOSing the enemy?

When a rogue attacks me I drop 5 fire nova totems and an earthbind totem. Seems to mess up the rogue enough to just shock him once and he dies.

A warrior should go down like drunk in a fight.