Blood Barrier

Your blood rapidly animates and crystalizes on contact with air, shielding you from further harm. Whenever you take at least 5 damage that you are not resistant to, a blood barrier appears in your space and moves with you, remaining for the duration of the spell, or until destroyed. You can only have a maximum of three blood barriers at any one time. You can use your action to dismiss all of your blood barriers or launch them at a creature within 5 feet, dealing 1d4+1 bludgeoning damage per barrier and destroying them.

Each time a creature hits you with an attack while you have a blood barrier, roll a d20 to determine whether a barrier intercepts the attack. If you have three blood barriers, you must roll a 6 or higher to intercept the attack. With two barriers, you must roll an 8 or higher. With one barrier, you must roll an 11 or higher.

If an attack is intercepted by a blood barrier, the barrier is destroyed and you gain resistance to all damage dealt by that attack. A barrier can be destroyed only by an attack that hits it. It ignores all other damage and effects.