Path of the Pact

You gain spells that you can cast to bolster you and your party

Spellcasting

Your deity, ancestors, or tribe empower you to cast spells

Duel Mind

You can now concentrate on spells even while using rage. This feature still does not allow you to cast spells while in rage but you may concentrate on them with help of your deity, tribe, or ancestors. 

Magical rage

Your concentration spells now have some benefits while you are raging. If your spell that you are concentrating on deals damage the damage increases by adding your rage damage to the spell. If there is multiple targets or multiple beams then you can apply the damage to each target or beam. If you spell has a DC save than you may add 1/4 your barbarian level rounded up to the spell save DC

Magical strikes

The magic you wield now empowers your weapon attacks. While a spell is cast on you or you are concentrating on a spell you may add that spells level to your damage while using a weapon attack. If multiple spells are affecting you use the highest level spell only.and your weapons attacks count as magical for purposes for overcoming resistance. 

Magical Juggernaut

You have mastered your spells and rage. You now don’t need to roll for concentration checks if you are raging. And you can not lose your rage if you are concentrating on a spell in combat. You can expend one rage charge for any spell slot 3rd level or lower and you can expend any spell slot to gain one rage charge. You can do either of these only 2 times per short rest.