At first, the game seems really fun. But after 5 or 6 levels it just gets repetitive. Your just lowering/raising land, until you either greatly outnumber your opponent and then you use Armageddon, or you start attacking him and slowly take over his buildings.
It'd be better if you could have more control over your units, if you had multiple enemies, and multiplayer could be interesting
all you have to do is create flat land, and then once your max mana is around 1400 and you have 200ish buildings, just save up for Armageddon, and drown their higher players while saving up. You'll win every time.