@fsecco Well, okay, theoretically I would have won that game. It's a time management issue. If it was the third game with little time on the clock in that gamestate, without the Geyser my opponent could have chosen to be a butthead and time us out.
Jace and Kaya are slow as shit, so there are times you want something faster. Yes, Geyser is clunky and without the option to finish I definitely wouldn't run it. If you can think of another finisher that prevents timeouts while offering decent utility, please suggest it.
@revengeanceful The Humility was never a factor in any of my games that I remember, although it certainly could have been. E.g., shutting down Depths if I hadn't gotten the Strip Mine, shutting down Snapcasters. It's there for those types of things, as well as Oath, Ballistas, and random utility creatures.
I did no play testing except for goldfishes, so can't comment otherwise.