"Rat-a-Tat-Tat" Commander (1) 1 Marrow-Gnawer Creatures (30) 1 Cackling Fiend 1 Chittering Rats 1 Crypt Rats 1 Cunning Lethemancer 1 Cutthroat il-Dal 1 Demon's Jester 1 Dirty Wererat 1 Disease Carriers 1 Earsplitting Rats 1 Infected Vermin 1 Kuro's Taken 1 Liliana's Specter 1 Nezumi Graverobber // Nighteyes the Desecrator 1 Nezumi Ronin 1 Nezumi Shortfang // Stabwhisker the Odious 1 Okiba-Gang Shinobi 1 Pestilence Rats 1 Ratcatcher 1 Ravenous Rats 1 Rotting Rats 1 Scrib Nibblers 1 Skeletal Changeling 1 Stronghold Rats 1 Swarm of Rats 1 Throat Slitter 1 Adaptive Automaton 1 Brass Herald 1 Rackling 1 Ink-Eyes, Servant of Oni 1 Patron of the Nezumi Planeswalkers (3) 1 Karn Liberated 1 Liliana Vess 1 Sorin Markov Spells (29) 1 Expunge 1 Suffer the Past 1 Aphetto Dredging 1 Damnation 1 Exsanguinate 1 Life's Finale 1 Patriarch's Bidding 1 Syphon Flesh 1 Syphon Mind 1 Unnerve 1 Bottomless Pit 1 Brink of Madness 1 Gibbering Descent 1 Liliana's Caress 1 Megrim 1 Painful Quandary 1 Quest for the Nihil Stone 1 Seal of Doom 1 Armillary Sphere 1 Guardian Idol 1 Mind Stone 1 Mycosynth Wellspring 1 Paupers' Cage 1 Riptide Replicator 1 Scepter of Fugue 1 Sol Ring 1 Volrath's Laboratory 1 Wheel of Torture 1 Thornbite Staff Lands (37) 22 Swamp 1 Barren Moor 1 Bojuka Bog 1 Dust Bowl 1 Homeward Path 1 Leechridden Swamp 1 Mishra's Factory 1 Mutavault 1 Mystifying Maze 1 Polluted Mire 1 Strip Mine 1 Swarmyard 1 Tower of the Magistrate 1 Urza's Factory 1 Wasteland 1 Volrath's Stronghold Sideboard (0) Here is my Marrow-Gnawer deck

Once that happens, the value of X won't change later in the turn even if the number of artifacts you control changes
Because Misprint is a marketplace, the prices reflect real transactions not just estimates
Further Upgrades Aurelia, the Warleader was originally in the $100 list but had to be cut due to rising card prices, so I'd recommend that card first
Anticausal Vestige Showcase, Fracture Foil, M0383 The artwork on this variant of Anticausal Vestige is stunning, and its a massive step up from the standard version of the card