Ok I actually built a battlemage with sparks earlier to test out how good it is as more than just theory crafting, and I have something more to add to my little "build" earlier.
Sparking Swings ->Sparkmaster
Weapon damage doesn't really matter, the spark doesn't just do over half your damage, it does 90% of your damage. I suggest high crit weapons with long reach for early mid game, and once you get to Arx buy the Air damage staff from the Unnamed elf for permanent Thick of the Fight buff. I was critting for 3k damage per spark with 83% crit rate on a lvl 18 lone wolf battlemage, which is 10k total damage per target hit (3 spark hits, and ~1k from the actual staff attack). It's ridiculously powerful, as long as there are more than 4 enemies in the fight (not necessarily in reach of your weapon, mind you. The sparks fly FAR) it's much stronger than even meteor storm in terms of damage per AP. My Meteor Storm on the same stats/buffs does something like 6k damage to targets in the dead center, which is less damage even if there's 4 targets all clumped up in the dead center to take most of the meteor hits, than a single whirlwind with sparkmaster.
This is one of the greatest build in terms of AOE damage, second only to apotheosis + double pyroclastic eruption (that shit is broken) or mass corpse explosion with loads of imported ammunition (way too cheesy for my liking). You can spam any other 3 SP skills all day and not do nearly as much damage as Sparkmaster builds.
Is enough to punch through magic armor and deal good damage even without lone wolf and being the only magic damage dealer as long as you have your other characters cast a couple teleports for your battlemage, Downside is that when there's only a single enemy left, the sparks don't trigger and you have to rely on pyro skills (hence the meteor storm) or teammates.
Last edited by Abao; 20/03/19 05:52 PM.