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
use commander Brion Stoutarm to Fling your opponents creatures with cards like Act of Treason, and if you're lucky - use Bazaar Trader to keep them
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
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
Don't sleep on that price difference since they will usually answer what you want, although the green one can answer more permanents