My first guess is that wed want just 23 here, and Im not even sure we couldnt play 22 if we could actually get away with four Opts (though they are competing with Temple of Mystery to some degree)
Its also a faerie, which can be very relevant in the upcoming Standard, enabling synergies
If you do, you get to search your library for any artifact (creature or not) with a mana value equal to or less than one mana more than the artifact you just sacrificed
Like Stage 1 Pokmon, this means that, from the start of the game, the player who plans to attack with these Pokmon in a deck will need at least two turns of Setup or the time it takes to go from beginning the game to having a Pokmon that is ready to take knockouts against the opponents Pokmon or for the player to be otherwise be ready to execute the decks strategy to win
With two counters, Umezawas Jitte can give the equipped creature up to +4/+4 or pick off smaller creatures with its -1/-1 ability
Remember this is the base set first since they are making cards for casual play in the Commander brews so that'll be next