Disrupting Flash

2nd-level evocation (Solarmancy)
Casting Time: 1 action
Range: Self (30-foot-radius)
Components: V, S, M (An Uncommon or rarer Sunstone)
Duration: Instantaneous

You focus the energy within your sunstone and extend it upwards, creating a disrupting flash of blinding light. Each creature of your choice within 60 feet of you that is concentrating on a spell must make a Concentration check equal to 10 plus your Spellcasting Ability Modifier or lose concentration on the spell they are concentrating on. If a creature is an undead or fiend, they have disadvantage on their saving throw.

In addition to this, any darkness created by a spell of 2nd level or lower is dispelled.