Barbarian War Caster

You have practiced casting spells in the midst of combat, fuelling your rage and bloodthirst.

you go by the following rules:

• You can now cast Cantrips which inflict damage while under the Rage effect, adding your Rage Damage bonus to the attack. If the Cantrips require concentration, you treat said concentration as if you were attacked that turn, however using Charisma Saving Throw instead of Constitution to maintain said Concentration.
• You can perform the somatic components of spells even when you have weapons or a shield in one or both hands.
• When a hostile creature's movement provokes an opportunity attack from you, you can use your reaction to cast a Cantrip at the creature, rather than making an opportunity attack. The Cantrip must have a casting time of 1 action and must target only that creature.