I think it would be nice if you were able to trade relics with other empires. If I'm playing as a xenophilic empire, and another empire gets the Omnicodex, it would make sense to attempt to buy it, not delclare war in the hopes I capture it. It would a good feature for multiplayer games (empires swapping relics for ones they want), and could be nice in singleplayer, depending on how much the AI wants for relic.
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