At 3rd level If you spend 30 seconds observing a creature, you can discern if they have casting abilities and if those abilities are arcane, divine, or psionic in origin. You can spend an action to detect the magic abilities of a creature within 60 ft. As an action you immediately know the number of spell slots the creature has remaining and the highest spell slot they can cast.
At 6th level you gain the Mage Slayer Feat and you also have advantage against magic effects that target you.
Mind Over Matter:
At 10th level you can use your action and reaction to absorb a spell and cancel it. If the spell targets you, it is treated as having a Counterspell cast against it (using STR instead of a casting ability); If it is a persistant effect it is treated as being under the Dispel Magic Spell (Again using STR as a casting ability). You can use this a number of times per day equal to your Proficentcy Bonus and regain all uses after a long rest.
No Spell Can Stop Me:
At 14th level when you are raging you may use a bonus action to go under the effect of an Antimagic Field. This ability lasts until you stop your rage. You can use this ability a number of times equal to 1/2 your proficentcy bonus and regain all uses after a long rest.