Host to Madness (3.5e Spell)

You call forth a legion of alien minds from the depths of the far realm and bind them to an unwilling body. They quickly drive the host insane, who considers everyone his opponent, allies and enemies alike. The enemy goes off to assault the nearest creature in the best way they can, ignoring previous allegiances, and spouting madness. They will not stop, even for self-preservation, until all targets they can see are dead.