Ultima

One of the apex of destructive magics a spellcaster can achieve. 

When casted, destructive energy explodes in a sphere of green power that can bypass any magical defense. 

All enemies within a 60ft radius sphere must make a DEX Save based on the Caster's Save DC. On a fail, targets take 40d6 of damage (This damage has no type). On a success, targets suffer half damage.

This spell bypasses all resistances and immunities. It can also bypass spells such as Wall of Force, Otiluke's Resilient Sphere, and Globe of Invulnerability.