Aaroniero's resurrección should be able to use a single absorbed shikai without being in his resurrección. The shikai to be used should be able to be set while in his resurrección.
While in his resurrección he should be able to absorb shikai if he's not using one and kills a substitute shinigami/shinigami/vaizard with it like normal.
As a new(throwback) ability, Aaroniero's resurrección should be able to copy the name, skin color, face, and hair(not clothes) in both sealed and release state of the resurrección at will.
Edit: Passively using the absorbed shikai should not give a boost, only the resurrección itself.
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