Like Szarekh, Anrakyr has an attack trigger, but does far more than draw you a card, instead cheating mana costs by letting the player use their life total for a single artifact spell
However, now that I have taken the time to study them a little bit more, I have to say that they are a fun archetype that is quite unique amongst the various archetypes in the game
Fear of Missing Out currently starts at $ 2.30

Table of Contents show The Deck Rat Colony | Illustration by Suzanne Helmigh Commander (1) Creature (46) Accursed Marauder Ayara, First of Locthwain Blood Artist Boggart Trawler God-Eternal Bontu Grim Haruspex Karumonix, the Rat King Lord Skitter, Sewer King Marrow-Gnawer Midnight Reaper Ogre Slumlord Plaguecrafter Rat Colony x32 Vengeful Bloodwitch Zulaport Cutthroat Instant (3) Fell the Profane Hagra Mauling Plumb the Forbidden Sorcery (2) Agadeem's Awakening Bloodline Bidding Enchantment (1) Artifact (14) Altar of Dementia Arcane Signet Charcoal Diamond Fellwar Stone Gathering Stone Jet Medallion Magewright's Stone Mind Stone Phyrexian Altar Sceptre of Eternal Glory Skullclamp Sting, the Glinting Dagger Thought Vessel Throne of Eldraine Land (33) Cabal Coffers Castle Locthwain Cavern of Souls Crypt of Agadeem Phyrexian Tower Secret Tunnel Spymaster's Vault Susur Secundi, Void Altar Swamp x22 Takenuma, Abandoned Mire Urborg, Tomb of Yawgmoth War Room Verminister leads a Rat Colony deck with an emphasis on sacrifice effects to maximize the potential of Rat King, Verminister

It's around #14 or 15 on my list and not in the Top 10 proper, but the ability to force someone to discard, and destroy artifacts and critters with one number is a very precise scalpel that destroys what you need, but tends to leave your own stuff alone