Jonstal's Double Wizardry

This powerful spell enables a caster to unleash two specific spells at once, with the utterance of a single word. Both spells take effect in the same round, upon the caster (or both on a recipient being), and function normally, except that their durations become 1 round per level of the caster. The two spells must have been memorized beforehand by the caster. They are not lost from memory until the double wizardry is employed; if either is used by itself, the double wizardry vanishes with it.

Any material components for the two spells are consumed when the double wizardry spell is uttered, and must be on the caster's person (but need not be revealed or handled by the caster). Only the caster can unleash the double wizardry.

The only two spells that can be paired by use of a Jonstal's double wizardry are invisibility and levitate; despite years of research, the archmage Jonstal has managed to master only one other pair of "combination" spells (see Jonstal's improved double wizardry). No known being short of the Faerunian lesser divine power Azuth can freely cast any two spells in the same round.