toxic fumes

The caster creates a cloud of green fumesin a cone of 15ft 5ft in front of him/her. The targets of the spell will suffer 6d6 acid damage or half of that on a succesfull dexterity saving throw and will be considered poisoned for 2 rounds on each of wich they will take 2d6 poison damage or half of that on a succesfull constitution saving throw.

When you cast this spell using a spell slot of 4th level or higher, the damage (initial and from it's effects) increases by 1d6 for each slot level above 3rd.