Bladestorm Rift

You tear open a planar seam that vomits a storm of spectral blades. Choose a 15-ft-wide, 15-ft-high, 60-ft-long prism entirely in spaces you can see. You must be adjacent to the prism’s boundary when you cast the spell (melee-adjacent placement). Each creature in the area makes a DEX saving throw, taking (1d6+1) slashing + (1d6+1) piercing damage on a failed save, or half as much on a success. The rift’s damage is magical.

The prism can be angled freely in three dimensions, but it cannot extend through solid barriers that provide total cover; the area stops at such obstacles.

At Higher Levels. When you cast this spell using a slot of 2nd level or higher, the damage increases by +1d6+1 slashing and +1d6+1 piercing for each slot level above 1st.

Notes (DM).

• Treat the area as a 60-ft line that’s 15 ft wide and 15 ft tall; creatures are affected once even if multiple cubes of the prism overlap them.
• The adjacency requirement keeps this “melee-adjacent” despite its reach; it does not originate from the caster, so you can angle it along walls, upward, or downward as long as a face touches a space adjacent to you.
• The damage types are based on weapons that you resonate with. In the above spell the sword resonance grants piercing and slashing damage. Additional damage types are added if resonances are expanded.