ArtiSwarm, v3
Tagging @bepoest and @alplod: After our Grincher discussions, I thought I’d make a new brew of one of the older secret builds of mine: Artifact Swarm (at least I think I haven’t posted this one before?).This is a very versatile deck that combines powerful swarm strategies with versatile artifact combos. Often it’s correct to equip Grimwar in a safe spot while developing some swarm, and cashing in a couple turns later with Silhouette Tracer for some insane damage (“you though you would be safe at 23 health? think again”). Matchup knowledge plays a huge role in this deck, for example against Songhai you want to use your swarm asap since they can remove both your artifacts and swarm in an instant, whereas waiting it out in a safe place is nice against generals like Ragnora and Maehv who don’t have such good artifact removal.
Grincher has a real good home in this deck: I’d say that with the 3 cost decrease he provides for his artifact, more than half are good at either boosting general attack potential or giving cool swarm buffs. Each time I test out the deck I discover new combos: this time it was Chakram + Skywind Glaives and, at last, (gasp) one of the most op multi-faction combos in the game: Grimwar + Bangle. I also got two discounted Chakrams which tend to be pretty good in Lilithe for two mana 
For the latest version, my main changes were Spectral Blade for Mindlathe and Ritual Banishing for some more swarm potential. Since the current meta favors memes that are highroll-y and all-in, removing things is often not worth it when they just drop a ramped Wanderer or Fault anyways. Instead, we want to take the initiative fast and “improvise, adapt, overcome”. I realized after a few games that I forgot Cryptographers from the current version, but Zyx was more than good enough substitute for this meta, dodging Rebuke and pings nicely. Wraithling Swarm is super important in this deck, since positioning is much more important than in the general yolo-hyperswarms.
WR was 9-7 (56 %) in Diamond. Most of the games were close either way, but sometimes you can just close the game with a huge bang which can feel really cathartic in this meta 