Aria's Shield

When an attack misses by an amount equal to or less than the AC bonus granted by this shield, the shield emits a spray of poison in a 15 ft cone. Creatures within must make a Constitution Saving Throw DC=8+PB+CHA MOD or take 2d6 Poison Damage and are given the Poisoned Condition. On a Success the target only takes half damage and is not Poisoned.

Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.