I was thinking about the new set's Clever Conjurer in conjunction with Kelpie Guide. There must be something you can do with endless tapping-untapping, right? How about Magda, Brazen Outlaw? And something to give everybody the Dwarf type? Kaldheim has an Artifact for that, Maskwood Nexus. So get all four of these on the board, get to untap, and you have infinite treasure!
I was so excited about dreaming up this combo that I actually registered here for the first time to post about it.
Now be honest: Since I'm very much a noob, and noobs probably latch onto these things much more easily than most, while failing to see that it's a useless observation for practical play: Is there a deck in this? My weak google-fu didn't find anybody talking about this combo, but maybe there has been talk of it and it has already been dismissed.