Lady Antje gives, according to Synergizer's list
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radiant choker (+8% to hostile effect resistance), golden runestone
while Unni gives
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Unni's Boon - +2% protection from magical damage (fire, cold, energy) [lose Unni's Blessing]
Regarding this "lose Unni's blessing", while we are at it, I wonder what would happen if I sell it and then give the totem to Unni...