Destructo Disc (3.5e Spell)

A golden buzzsaw flew through the air, slicing him clean in two.

A powerful spell, a Destructo Disc deals 1d6 slashing damage per level (max 20d6) in a 100 ft. line. You make attack rolls against each possible target as needed. Normally that is all, however, it is a vorpal weapon. On a natural 20, it will decapitate the enemy, with all rules about vorpal pertaining.

Draw Energy: When using Draw Energy, instead of supplementing spell slots, you can use it to power this spell. For every round spent charging, you can have the disc maintain itself for an additional round, assigning it a new path to swing across as a move action. The disc flies at 100 ft. per round.