The Beast Unleashed

You unleash the primal savagery of your allies. Any friendly character within 10m of you goes into a frenzy rage. They gain resistance to bludgeoning, piercing, and slashing and they can make one melee weapon attack as a bonus action during their turn. When the spell ends all those who were affected gain 1 level of exhaustion.

This spell does not work on animals since they are already feral beasts.

Miscast: On a 18-19 the spell is interrupted with no effects. On a 20 you lose control of your magic causing 2d12 psychic damage on each of those targets. They also suffer a -4 penalty to Int and Cha for 1 minute.