Talus's Talusplosion

Target Talus's Fishlussion or Talus's Cowlussion explodes in a 60ft radius. All creatures within 30ft of the explosion takes 3d8 fire damage. All creatures between 30 and 60ft of the explosion must succeed on a dexterity saving throw or take 3d8 fire damage. On a success, they take 1d8 fire damage instead.

All creatures within 60ft of the explosion take 1d12 thunder damage. All creatures between 60 and 120ft of the explosion must succeed a constitution saving throw or take 1d12 thrunder damage.

You may also cast this on other illusions, but the damage die is reduced to a d4, and the explosion radius is reduced to 30ft. (15ft 3d4 Fire, and 15-30ft Dex or 3d4 Fire).