I think Zelena is literally creating the Classic Oz compaions (Lion, Tin Man, and Scarecrow) by taking those qualities from the people who have them in abundance.
Charming = has the most courage = now gone= Cowardly Lion.
Someone else is going to become the Tin Man and the Scarcrow.
Scarecrow = most brains = Belle!
Tin Man…I’m going with Neal or Henry
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"He was a lot of things to me" "The only conclusion was love"