Auex's Ring Of Power

When you awake from a long rest, you can choose a creature type from the following list:

Aberration, Beast, Celestial, Construct, Dragon, Elemental, Fey, Fiend, Giant, Humanoid, Monstrosity, Ooze, Plant, or Undead. Until the end of your next long rest, whenever you roll damage against a creature of that type, you can choose to treat any 1 rolled on a damage die for that attack as the maximum damage possible for that die. Once you do this, that creature becomes immune to this effect for 24 hours. If you roll multiple 1s for damage, they all gain the benefit of this ring. If this is used in conjunction with an attack that affects multiple creatures, only those of the correct type suffer the additional damage.