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Ice Block, for example;)
Added 3 minutes later
It's clear that Death Knights aren't worth leveling up for the Hive. I'm just surprised by some of the spells in the game. For example, Minefield, Wall of Fire, and Confusion, or whatever it's called. I only appreciated Confusion once when some mega-mage cast it on a large scale. My archers refused to shoot, and the druids refused to cast spells. And no matter how many times I cast it, it had no effect.
Added 3 minutes later
Oh, I just read in the manual that the Swarm of Mosquitoes, with expert summoning magic, reduces initiative by 60%. For example, "Slow" reduces it by 40% at best. I just don't understand how many turns the initiative drops by.