Protective Mastery

You have mastered magical techniques to be more proactive in combat, gaining the following benefits:

• You have 2 reactions per turn. 
• If an ally gets attacked within 10ft of you, you can teleport to them in a blinding flash of light. The attacker rerolls the attack and uses the new number. This redirects the attack to you. 
• You can extend the range you can block attacks by 10ft by taking 5 damage or losing 1 ac for the rest of combat.