#1 One tank tanks the fire-boss, and melee DPS' it. (Jump in the fire when water logged.)
#2 One tank tanks the water boss, and ranged DPS' it.
At 30% the earth and wind bosses enters
#3 If you get a yellow marker above your head, run away from the raid until you've been hit by chain lightning.
#4 Step in to the tornados when they are cast. Step inside void zones during "Thundershock"
When they bosses get low on health they transform into an "Elementium Monstrosity". Kite it and DPS like crazy