Venoshock

You intensify the toxins present in a creature's body, causing them to become aggressive and massively corrosive. Choose 1 creature you can see within range. That creature must make a Constitution save or take 5d10 poison damage, taking half damage on a success. If the creature is already poisoned, the damage increases by 2d10

At higher levels: When this spell is cast with a spell slot of 6th level or higher, the base damage increases by 1d10 per level of spell slot above 5th.