NONLETHAL SPELL [METAMAGIC]

You can modify a spell to deal nonlethal instead of lethal damage.

Benefit: You may modify a spell that deals lethal damage to deal nonlethal damage instead. All other effects of the spell remain normal (for example, a nonlethal fireball may still set flammable objects ablaze).

A nonlethal spell uses up a spell slot one level higher than the spell's actual level.