17 Sevinne, The Chronoclasm Time Waits For No One Sevinne, the Chronoclasm is a 2/2 Human Wizard for five mana that can't be dealt damage and synergizes with the Flashback mechanic
Before that deal was made public, other variations of the card had seen a growth in demand when sold at auction
(To scry X, that player looks at the top X cards of their library, then put any number of them on the bottom and the rest on top in any order.) As the enters-the battlefield ability resolves, first you scry 2
Instead of doing a deep dive on Tiamat (look at the Ur-Dragon page, its the same deck) or even Xanathar (everyone is bafflingly building a mill deck, I guess to optimize what one card you get?), I think Im going to do a real shallow strafing run through everything to get the big hits out of the way first
To this core, a card that ramps like OP05-073-miss-doublefinger-zala and a card that allows you to trash cards from your hand such as OP03-044-kaya or OP06-051-tsuru is mandatory