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They can be burned for DEC ;) gladiator cards, not the merits

If you are desperate.

Not really desperate, I just did not know what they were. I'll hold them in case one day I join a guild. thank you.

keeping them stashed is fine, that is what I am doing.

So for a non guild player they are basically useless?

It seems so, but this could change in the future. Hold is the only option :)