This menacing shadow holding two sharp weapons with crazy eyes and a terrifying grin seems to have come from some evil Halloween cartoon
In this deck, Singularity Rupture can do a lot more for you than just clear the board

Atsushi, the Blazing Sky Belonging Bill Ferny, Bree Swindler Blight Herder Briarbridge Patrol Bristlebud Farmer Brood Monitor Bushy Bodyguard Camellia, the Seedmiser Captain of the Watch Charforger Chronozoa Cloudgoat Ranger Compleated Huntmaster Corsairs of Umbar Cryptbreaker Dalkovan Packbeasts Dawnhart Mentor Deadly Grub Deathspore Thallid Deep Forest Hermit Docent of Perfection Drake Hatcher Dusyut Earthcarver Elvish Farmer Emrakul's Hatcher Esper Terra Eyeblight Cullers Faramir, Prince of Ithilien Feasting Troll King Flaxen Intruder Fractal Tender Goblin Traprunner Grakmaw, Skyclave Ravager Guardian of Cloverdell Hoarding Ogre Infected Defector Injector Crocodile Insatiable Frugivore Inspired Inventor Ishkanah, Grafwidow Kessig Wolfrider Kithkeeper Knight of the Last Breath Kura, the Boundless Sky Lorehold Archivist Magda, the Hoardmaster Malcator, Purity Overseer Marionette Master Meddling Youths Mishra, Lost to Phyrexia Mycologist Oketra the True Pallid Mycoderm Patient Naturalist Phyrexian Triniform Piper of the Swarm Pizza Face, Gastromancer Ponyback Brigade Poppet Stitcher Prismari Pianist Progenitor Exarch Psychotrope Thallid Ran and Shaw Rat King, Verminister Rootwire Amalgam Rory Williams Ruthless Knave Safana, Calimport Cutthroat Samwise Gamgee Savage Thallid Sengir Autocrat

If you have some cards in mind that you need to build around a new commander or upgrade one of the precons, it's probably best to pick them up soon because a lot of other players will likely be doing the same which can drive up prices
It's unlikely I'll take out a Simic Guildgate that you need for mana, because I want people to play the game