What if a horde of Daemons or Dragons attacks the party, and there is no hope of winning the fight against them? Is now everything lost?
Of course not. This high-level spell is a true lifesaver in situations like these. Casting it, all the mage's foes are instantly turned into mostly harmless Slimes. To vanquish these extremely weak foes should then be only a matter of time for schooled adventurers (or a conviniently placed fire spell).