School of Form

you want to devastate an entire area, this is the subclass for you.

Spacial Savant

Beginning when you select this school at 2nd level, the gold and time you must spend to copy a spell that targets a point, or area in space into your spellbook is halved.

Expanse Contraction

Compacting the fabric of reality, you make the distance between spaces contract. As a bonus action you or a willing creature within 10 feet of you adds 5 feet of range to it’s attacks and spells that have a range of 5ft or greater, until the start of your next turn.

Dimensional Elongation

When a spell you cast affects an area, you may expand that area in one direction 10 ft. I.E. if you select a point in space you may select a 10 line in space, if you create a 10 radius cylinder you create two hemisphere cylinders connected by a 10ft  rectangular prism. You may use this ability once per long rest or short rest, or by consuming a spell slot of third level or higher.

Rotational Axis

As an action you choose a number of targets up you your intelligence modifier (minimum of two) you know the location of within 30ft, they make a charisma saving throw, on a failed save, you shift space around them so they are at any point that is the same distance from you as their starting position and is not an occupied space, on a successful save they are harmlessly pushed 5 ft away from you and any creatures in their path are moved to the nearest unoccupied space. You may use this ability once per long rest.

Hyperbolic Casting

When you cast a spell that does not target a creature or creatures, as a bonus action you may include one creature in that spells range even if it would not normally be within range, it makes any saving throws for a spell cast this way with disadvantage, but otherwise is affected by that spell normally, except it is considered within range of that spell for it’s entire duration. You may use this ability once per long rest, or by consuming a spell slot of 4th level or higher.