mime jr pokemon card – 031/091 – Paldean Fates – Reverse Foil – Single : Toys & Games Sleepy Lost Put the top card of your opponents deck in the Lost Zone Mime Jr. 157/091 - Holofoil

But her real boon is that she makes all noncreature spells cost one less mana if you have three or more lesson cards in your graveyard

So, yeah

You can pair them with token-matters cards like Caretaker's Talent, or just create tokens to protect your superfriends like Narset of the Ancient Way

The most likely decks to want it are some kind of U/G Part the Waterveil deck (maybe), or as a sideboard option for some kind of a deck that desperately wants to buy a little time, maybe a ramp deck, a combo deck, or possibly even just some deck with Fumigate or Descend upon the Sinful

That said, if someone can figure out how to make it work, it could be very effective at ending games early

A tutor like Mystical Tutor cant be used to tutor for an omen card