Antimagic Blast, Variant (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Range:||Self (30-foot cube)|
|Components:||V, S, M (a mithral coin)|
A blast of disruptive magic fires outward from you. All spells of 5th level or lower affecting each creature or object within a 30-foot cube originating from you end. For each spell of 6th level or higher, roll a d20 + the spell's level. If the result is less than your spell save DC, that spell ends. Any creature or object in the blast capable of casting spells is rendered unable to cast spells until the end of your next turn, unless that object is an artifact or that creature is a deity.
If a creature concentrating on a spell is caught in the area, it must make a Constitution saving throw against your spell save DC to maintain concentration on the spell. If the creature fails the saving throw, they take 1d10 psychic damage per level of the spell they were concentrating on (minimum 1 damage for a cantrip) and and lose concentration on the spell.
At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the antimagic blast automatically ends the effects of spells on targets in the area if those spell's levels are equal to or less than one less than the level of the spell slot used.