Well, we would need to make sure that enough new cards are produced, as this significantly buffs Prohibition. However, this allows for a faster cycling out of useless cards, so

Note: Kevan’s (probably) doing this because he wants to permanently remove Ambassador, securing The Far Island. The idea is still good in general, but if you can, remove his friendly status there.

We could always just prohibit Prohibition.

that’s somewhat unfair, if someone draws a copied card then it gets removed before they get to do anything with it, it’s like they didn’t draw at all.

[card] That doesn’t seem very different from having a regular card removed from your hand directly, before you get to play it.

it’s like adding extra prohibitions to the deck since this makes duplicates rely on the original. would it be worse to let cards that are still attached or in hands exist until they go back in the deck?

*duplicated cards