Abomination

Abomination House is good for its attack spells. The attack spells are second best to War. Like the Humans, the horny little devils(Imps) get a +1 attack for swords on the first round of a fight. Likewise, the best tactics are to use mainly swords unless you have good arrow spells.

Beast's Embrace. Not only is this card good but the sound it makes whaen you cast it is cool too.

Canabilism. Yum. What more can I say but yum?

Rain of Blood. Good with Yfreet if you have the mana. Kill's the enemy's big group easily.