Metabot's Manual of Magical Maneuvers

Attractor Pulse

5-level Evocation

You throw an orb of dark energy out to a location within range. A line of lightning streaks out, pulling creatures towards it before a thunderous boom sounds forth. Each creature you choose within 30 feet of a point within range must make a Dexterity saving throw. On a failure, it takes 4d10 lightning damage and be pulled 20 feet in a straight line towards the origin of the area of effect. On a success, it takes half damage and is not pulled.
A 10 foot radius area centered at that point crackles with latent magical energy. Until the start of your next turn, the area is considered dimly lit and difficult terrain. At the start of your next turn, creatures other than you in the area must make a Dexterity saving throw, taking 4d10 thunder damage and falling prone on a failure, or half damage on a success.
At higher levels: When you cast this spell using a spell slot of 5th level or higher, the damage the spell deals increases by 1d10 for each slot level above the fourth.