Massive ae damage build

Ever notice that mobs in eye of the north travel in packs?
Starting over need a build that dishes out most area of effect damage possible any ideas?

In PvE I usually have Vekk and Zed set as Searing Flames Eles with Meteor Shower. Works like a charm

I use 2 rit heros with spirit rift/ancestors rage, and one with splinter weapon. mobs die fast.

I take Zhed + Vekk + Acolyte Sousouke!

The quest 'in defense of the eye' was really quick and easy :P

I also use both 3 ele heroes, and I am an ele myself atm in Eye of the north.
I run wards with glypf of energy with earthquake and deargonstomp.
Vekk runs Water with shatterstone deepfreeze and the like.
acolyte and zhed use savannahs heat.

just wait for a mob to ball, have vekk cast deep freeze, you cast a knockdown, other two cast their Savannah, mobs die within seconds and often all at the same time.