The second ability of Cid, Timeless Artificer also lets you ignore the "singleton" rule in formats like Commander
This seems to be a solid item that provides a recurring benefit every single turn for the cost of just 2 Ink
Here's the rest of our original critique of the deck: While the Merlin/Madam Mim Bounce package is strong and will surely see play in the new meta, there aren't enough of them in this deck to create a reliable strategy
Some of these, though, are tough to reprint due to IP
Of course, they could exert for other reasons and avoid having to challenge, but if you can get something big enough of your own exerted, your opponents characters will crash against it and take themselves out
Unless otherwise stated by an individual card, of course