Wild Burst

You shout and point at a place within range; magic swells through you and arcs out to that point, creating a 5-foot radius sphere of explosive magic. Each creature within the radius makes a Dexterity saving throw or takes 1d4 of either fire, lightning, cold or acid damage (your choice)  and subtract 1d4 from the next attack roll it makes before the end of your next turn.

At Higher Levels: This damage increases by 1d4 when you reach level 5 (2d4) level 11 (3d4) and level 17 (4d4)