Rank up the lowest ranked scored card

[swift bison]

your screenshot doesn't show the part where you try to increase the rank

[swift bison]

I don't fully understand all the if statements involved, but from what I can tell you're setting the joker's suit and rank, not the target card

you're calling card:set_base

but card is this joker

oh you have a local variable

hm

have you put a print statement to test if the code is being run at all?

maybe one of those if statements is false