Arcane explosion

You create a tremendous burst of arcane energy that explodes from you in a 10feet radius, dealing 2d4+2 Arcane damage to all creatures and unattended objects in the area, except you. Said creatures are also pushed back 5 feet. Targeted creatures are entitled an Agility saving throw to negate the push effect, but cannot reduce the damage taken.

Heightened. The spell deals an extra 1d4+1 damage per every level above level 2.