Caustic- Nox Gas Trap

The caster throws a gas trap on the ground. Any creature who gets within 10 feet of the gas trap must make a constitution or dexterity saving throw. On a failed save, the target takes 1d6 damage for three turns, and any target unaffected by the gas will have advantage on attack rolls against the target. On a successful save, the target takes half as much damage and those attacking them will not have advantage on attack rolls. 

The caster can place 3 gas traps. The gas traps will refill on a short or long rest. 

At 5th level, the gas traps do 2d6 damage for three turns. At 11th level, the gas traps do 4d6 damage for five turns. At 16th level, the gas traps do 6d6 damage for 7 turns.