Man, Final Fantasy has such whimpy spell names. Wizardry is where it is at. And descriptions!

Name: Tiltowait
Effect: KA-BLAM!! (The effect of this spell is somewhat like the detonation of a small tactical nuclear weapon. The party is protected from its effects. Unfortunately for the monsters, they are not. The spell causes 10-100 hit points of damage to all monsters.)

[10-100 damage is a lot for a spell in Wizardry.]