Cleanse Area

Choose an area within range which can fit inside a 20 foot cube. Any spell of 3rd level or lower affecting that area (such as a Web spell), are emanating within the area (such as spirit guardians),  or which are applied to an object (such as a magical lock or trap) are dispelled. For each spell of 4th level or higher within the area, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a successful check, the spell ends. The caster does not have to be aware of the spell effect for it to be affected by this spell. 

For clarity, spells directly affecting one or more creatures within the area are not affected, nor are magical items. This can dispel illusions (such as a Minor Illusion), but not if the illusory effect is one that targets a creature and is only perceived by them. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you automatically end the effects of a spell on the target if the spell's level is equal to or less than the level of the spell slot you used, and the size of the cube increases by 5 feet for each level above 3rd. 

You may choose to cast this spell instantaneously (not breaking other concentration, if any) or to concentrate on this effect. If cast as a concentration spell, the instantaneous effects (above) occur, and then for the duration, spells of level 3 or lower targeting an area, or emanating within the area, do not have any effect within the area, and spells of 4th level or higher are subject to the same ability check, and success conditions as above.