Chaos Break

You can use your wild magic to disrupt the magic of others instinctually, choose one:

Chaos Infusion: You attempt to interrupt a creature in the process of casting a spell by infusing your chaotic magic into their spell. If the creature is casting a spell of 3rd level or lower, its spell fails and has no effect. If it is casting a spell of 4th level or higher, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a success, the creature's spell fails and has no effect. If the target's spell fails this way, it rolls on the wild magic table. 

Chaos Weave: Choose any creature, object, or magical effect within range, you attempt to weave your chaotic energy into the magic around or in the target. Any spell of 3rd level or lower on the target ends. For each spell of 4th level or higher on the target, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a successful check, the spell ends. 

The amount of chaotic energy needed to pull off this spell is even hostile to your body, take damage equal to 1d10 of necrotic damage for each spell level that either failed or ended due to this spell. This damage cannot be prevented. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the interrupted spell or spell effect has no effect or ends if its level is less than or equal to the level of the spell slot you used.