By having a monster that could maintain field advantage and also more consistently get out some of the decks key tools, Hand Control more consistently was able to make the plays it wanted to when it wanted to
There's always that kind of push and pull with powerful and potentially ban-worthy cards in Commander
Cid, Timeless Artificer is really strong in multiples but mediocre on its own (note that Weapons Vendor is an artificer for it)
However, Clefairy to me is the sleeper money card of Perfect Order, the same way Psyduck from Ascended Heroes continues to defy odds in regards to its market price on the secondary card market
Whether or not players care about the treasures, the damage, sacrifice, and ramp values of the card make it a definite include in any 100-card Riveteers deck
This is a small feature that saves a shocking amount of time, mostly because it eliminates the why is my mana symbol a tofu box problem