How about:
Do this thrice:
Choose one: +1 card or +1 action
A little bit better than what we have, but not so much. You know, this card is playable but still a bit weak for 6.
OR
Do this thrice:
Choose one: +1 card, +1 action, +$1, or +1 buy
So ironically, this can't be a market! But it can be smithy, lab, village, peddler, terminal gold, non-terminal silver, woodcutter, etc. etc. etc. I like it, but I wonder about $6. I think it's probably going to be better than most of the 6s most of the time, worse than goons. Well, printable I think, but maybe a bit strong.