Tower tactics.

And about the tower. I always build Djinns, and then upgrade them, upgrade them... that's how it turns out for me: one hero takes Golems, and the rest of the slots are filled with Djinns; the second one (most often it's Theodore) runs around with Mages and Gargoyles (and with Djinns); the third one gets a Naga and, who would have thought, Djinns! :) But there's no money for Titans. Golems sit in the castle - I remember once I had seven Golems in the castle (one in each slot), and for two weeks they provided the weekly income of a Swamp Thing (well, not really them, but the towers... and the mines a little bit...).