Plus, there's no agreement with what "X" should be
Mythics (20 of 20 known) Liliana of the Veil $90 Karn, Liberated $90 Cavern of Souls $80 Tarmogoyf $70 Snapcaster Mage $70 Temporal Manipulation $65 Karakas $60 Dark Depths $50 Emrakul, the Aeons Torn $40 Kozilek, the Butcher $40 Bitterblossom $40 Vengevine $38 Mana Vault $30 Mikaeus, the Unhallowed $27 Ulamog, the Infinite Gyre $25 Leovold, Emissary of Trest $20 Lord of Extinction $16 Sigarda, Host of Herons $16 Balefire Dragon $15 Platinum Emperion $14 That folks, is as good as your mythics list is ever likely to get in a booster box based Magic set
Paragon of a New Dawn/Paragon of Gathering Mists/Paragon of Open Graves/Paragon of Fierce Defiance/Paragon of Eternal Wilds One of the fun parts of doing an article where I wasn't at the meetings is that I get to try and guess how things came to be
Rakdos (red and black mana) decks often delight in stealing your opponents best cards and turning them back against their owner, and Laughing Jasper Flint furthers that strategy with aplomb
Have the deck build feature cards that generate Clue and Food tokens like Academy Manufactor, Tamiyo's Journal, and The Underworld Cookbook
I wanted a new enchantress list, and I thought hey, why not try something a little less crazy than Sigarda