This is the only mod I have on for a particular Custom Ruleset and now I am unable to make any purchases in the market after purchasing the GSP. Is the mod having an adverse effect there?

Just did a test, the mod is still working.

See newly added images to show what the merchant should look like when the mod is compiled correctly in a ruleset.

Is this working for anyone at present? Are there known mods that counteract this? I tried running with a minimum of mods, only this one affecting any equipment, and it continues to function like a normal stamina potion.

Works well. Make sure you have no other mods that change small items (even if it's just change the price) or it will not work (you will think it will but inside a scenario, it will perform as a regular stamina potion). To confirm: consuming this potion at the end of a turn will refresh the cards you just used and make them re-usable next turn. It will not remove and refresh summon and buff cards unless you burn them first (which you can do anytime when choosing cards to play on your turn)

the code i've written doesn't use any elements as far as I am aware, but this is a new game so maybe there are some weird interactions occuring.

Hey Chilla, does the mod interact with elemental absorption in anyway? I seem to have encountered a bug where the elements are being consumed but no effect occurs.

Now I can finally have an army of SLIMES! MWAHAHAHAHA

Fixed the issue cromne, potion should recover both burnt/lost and discarded cards.

Encountered a bug, it recovers burned cards but it doesn't recover discarded cards