Grim Haruspex : No direct interactions, but in combination with Athreos, could be the foundation of a solid draw/drain engine
I count: 38 lands and The Balrog of Moria (kinda), Treasure Nabber, Arcane Signet, Basalt Monolith, Commander's Sphere, Everflowing Chalice, Mind Stone, Relic of Sauron, Sol Ring, Worn Powerstone, Shiny Impetus, Cavern-Hoard Dragon 50 mana

Abstruse Appropriation Author of Shadows Blightwing Bandit Court of Locthwain Covetous Urge Cruelclaw's Heist Cunning Rhetoric Dream-Thief's Bandana Edward Kenway Extraordinary Journey Fiend of the Shadows Gale's Redirection Glamorous Outlaw Gonti, Canny Acquisitor Gonti, Lord of Luxury Gonti, Night Minister Gustha's Scepter Hauken's Insight Heartless Conscription Hostage Taker Ice Cauldron Intet, the Dreamer Jacob Hauken, Inspector Kheru Spellsnatcher Klaw, Master of Sound Lightstall Inquisitor Masked Bandits Monk Class Planeswalker's Mischief Praetor's Grasp Predators' Hour Psychic Intrusion Psychic Theft Rakish Revelers Ramirez DePietro, Pillager Rassilon, the War President Rev, Tithe Extractor Rogue Class Savvy Trader Shattered Seraph Siphon Insight Spara's Adjudicators Spelljack Thief of Sanity Valakut Exploration Vivien, Champion of the Wilds
Tutor [[Barkform Harvester]] onto the battlefield with Magdas activated ability
It creates a robot token for each multicolored permanent you control when it enters and draws a pile of cards whenever it attacks