My last alt I made on live was an Earth/Fire Dom which I was never able to fully IO. Now with homecoming I've built My Earth/Fire, a Grav/Fire and some other combos. My Earth/Fire can lock down and slowly kill 3 mobs at a time. I felt like I discovered the potential gem of the Dominator AT with the Earth/Fire. Very hard to match the level of damage and control combined in a single AT. Now I'm on to play a Symphony/Fire and cone the mobs to death!