Elufin twists out of the way of the attack, ducking the ferocious blow. That was far too close for comfort--these knights were certainly competent at what they do. Keeping himself and Jewel tucked behind his shield, he counterattacks with his own blade as the knight recovers. Unfortunately the other two were too far, he could not shield them properly--however, he has no time to deal with that right now. His own adversary was a far more pressing problem.
Spoiler: OOC
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Actions:
1) Raise shield (again)
2 & 3) Attack the knight
Attack 1: (1d20+4)[23]
Damage: (1d8+3)[5]
Attack 2: (1d20-1)[11]
Damage: (1d8+3)[10]
If I am attacked, I will use my reaction to shield block. If Jewel is attacked, I will use my retributive strike.