This episode also marks the first time Willow does a large, complex spell that goes awry.

Spellweaving is a method of casting very complex spells at very low power.

Once this spell is mastered, more complex spells aren't too far behind.

"Yes," Caramon muttered, thinking about the difficulty involved in casting such a powerful, complex spell.

I'm afraid there's a little more to it than that, at least on such complex spells.

A more complex spell for a specialized purpose might run into the hundreds.

This is a far more complex spell; if I don't get it right, she'll wind up worse than she is now.

If you needed anything magical done, you had to go to a witch, particularly for complex spells.

This is a complex spell; I'll need to transfer it to you directly.

Closing his eyes once more, he recited the complex spell again, this time backwards.