Most fun run yet.
Necromancer I sleep. there is no real counter for it the only balls that can are (spiker, turret, gladiator) but these all require a ton of stars to work properly against necromancer, this is why necromancer builds are lame and 1 ball builds are better #L
I've found leech to actually be a pretty good counter as AOE. Heals your own team extremely fast if you get a leech or 2 in the middle of fray.