Envenom

You bless your the strikes of your allies, allowing them to inject venom into their targets. Any number of target creatures within range gain a total of 10 venom dice, which are d12s, divided among them however you like. When a target hits a creature with an attack that deals piercing or slashing damage, they can use roll up to 4 of their venom dice and cause the target of the attack to make a Constitution saving throw. The attacked creature takes damage equal to the total of the rolled venom dice on a failed save, or half as much on a successful one.

If a creature runs out of venom dice, the spell ends for that creature.