(1) You have enough coins to buy a Colony, you have a potion in play, >= 1 buy, and no coppers in play. I am in the supply, but you cannot buy me. What card am I?
(2) You process me with Procession, to play me twice. There are no reaction cards played this turn, or other on-trash effects (so no Fortress), or anything else in play. Basically, you have no other action cards in your hand after you play me the 2 times, and there are no weird shenanigans going on (Possession, etc.). You gain your other action card from the Procession. But you don't trash me, and at the end of the game, I'm still in your deck. What card am I? (Hint:
this may be a Goko-bug -- not sure what is actually supposed to happen here.)
(3) You Thrown Room/King's Court me, you don't trash me, but you cannot actually play me more than once this turn (unless you have another one of me -- you could play that one). What card am I?
--> As always, there are probably multiple possible answers for each of these. I did my best to limit the possibilities to 1 card each