Realm Grinder burbling
and Drow upgrades are based on the number of spells cast in this game. including mana regeneration. so now I'm autocasting Call to Arms, Blood Frenzy, Goblin's Greed (with Tax Collection bonus), Combo Strike, and Heatwave (the seasonal special) continually, never running out of mana, and suddenly generating a volume of coins I've never seen in this game before. so much for the Titan faction!