You time studying war magic has unlocked secrets around the arcane tradition:

• Increase your intelligence score by 1, to a maximum of 20.

• Arcane Deflection: When you are hit by an attack or you fail a saving throw, you can use your reaction to gain a +2 bonus to your AC against that attack or a +4 bonus to that saving throw.

  When you use this feature, you can’t cast spells other than cantrips until the end of your next turn.