AJ's Noxious Fumes

Consuming the wrong (or right) meals has given your bowels a more potent effect. 

Decide on the type of attack you would like to make, ranged or stationary. 

Any creature within the area of effect must make wisdom saving throw. The creatures takes 1d8 poison damage on a failure and is frightened of the caster until the end of their turn. On a save, the creature is not frightened but still takes the full damage.

Make a constitution saving throw with a DC of 14 + the spell's level; on success, you can cast this spell as a bonus action on your next turn.

As the caster, you are immune to any of the negative effects of the spell.

A medium to high wind will act as though Dispell Magic was cast at 9th level on any lingering area of effect.

At higher levels, the damage dealt is increased by 1d8 per spell level. 

Ranged

You use your action to bend over and a terrible gas expels from you in a 15ft cone. The cone remains suspended for 1 minute, or until a creature walks through it. 

Using this spell at range grants any opponents advantage against you, as you are bent over and cannot see them until the beginning of your next turn. 

Stationary

Choosing to use the spell in this way expels the fumes at your feet, creating a 5ft radius sphere that sits at your location for the full duration (1 min). Unlike the ranged attack, this spell cannot be ended except through Dispel Magic or Counterspell (or any variant thereof). 

This use of the spell gains the benefits from Subtle Spell, as though cast by a sorcerer.