I have managed to complete the event for the 6 x set Eclipse Talisman, powered them up, and have put them on Astra.
I am contemplating using them on a character in the Arena next, I have discovered Alexander Eddie can steal them or remove them I think.
Beast can remove or transform some golden buffs but I don't think this is one of them.
Can anybody add some of their own experiences to the "in and outs" of this talisman set?