I can keep my Fallout side quests on my PC and as far away from my deck collection as possible
He does this while gaining loyalty, which means he gets harder to remove with every activation
New to the game

Abstergo Entertainment Alistair, the Brigadier Arbaaz Mir Artificer's Assistant Aya of Alexandria Ballad of the Black Flag Banish to Another Universe Basim Ibn Ishaq Bayek of Siwa Board the Weatherlight Cabal Paladin Coal Hill School Crystal Skull, Isu Spyglass Curator's Ward D'Avenant Trapper Daring Archaeologist Desynchronization Diligent Excavator Displaced Dinosaurs Elena, Turk Recruit Excalibur, Sword of Eden Glin, Dwarf Emissary Guardians of Koilos Havi, the All-Father Jamie McCrimmon Jhoira's Familiar Jhoira, Weatherlight Captain Jo Grant Layla Hassan Lingering Phantom Lost to Legend Mishra's Self-Replicator Moira and Teshar Monumental Henge New Argive Peri Brown Raff Capashen, Ship's Mage Relic Runner Rona, Disciple of Gix Samwise Gamgee Sanctum Spirit Sarah Jane Smith Sentinel of the Pearl Trident Serra Disciple Surtr, Fiery Jtun Tegan Jovanka Teshar, Ancestor's Apostle The Capitoline Triad The Eighth Doctor The Fourth Doctor The Sixth Doctor Thran Temporal Gateway Traverse Eternity Traxos, Scourge of Kroog Traxos, Scourge of Kroog Urza's Tome Weatherlight What Must Be Done

The One Ring was printed directly into Modern, so it has never been legal in Standard or Pioneer
Many of its cards allow you to buff your characters, so they can "swing up" and make favorable trades with your opponent's more expensive cards