60 count of Standard Card Sleeves Size: 66 mm x 91 mm (Pokmon, Magic the Gathering, One Piece CG &am
I am going to start with the worst planeswalker ultimates however for this list I have been rather selective and only chosen to consider planeswalkers than are at least playable, ideally good, in cube
If the card has X in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost
Since The Sibsig Ceremony destroys your creatures that enter, giving you a 2/2 Zombie in exchange, once you get a second Myr Retriever you can just loop them until you have enough Zombies in play to sweep the board
As far as cards that might seem suboptimal, a lot of them, like Baneslayer Angel and Akroma, Angel of Wrath are in the deck because I think they're cool