The artist confirmed that Rodolf is actually from Dominaria though we havent been given a proper lore explanation, his name seems to place him as naturally opposing Lyra Dawnbringer
Both the removal and the protection in this deck is incredibly dated

3 Bladewing the Risen Bladewing, Deathless Tyrant Blazing Specter Blim, Comedic Genius Boltwing Marauder Chaos, the Endless Defiler of Souls Demigod of Revenge Dragonlord Kolaghan Falkenrath Aristocrat Green Goblin, Nemesis Green Goblin, Revenant Immersturm Predator Interceptor Mechan Kathari Bomber Kolaghan, the Storm's Fury Kulrath Knight Malfegor Nu and Sumi, Career Criminals Ob Nixilis, Captive Kingpin Olivia Voldaren Olivia, Crimson Bride Olivia, Mobilized for War Orcus, Prince of Undeath Ozai, the Phoenix King Rakdos the Defiler Rakdos, Lord of Riots Rakdos, Patron of Chaos Rakdos, the Muscle Rakdos, the Showstopper Rankle and Torbran Raphael, Fiendish Savior Rohgahh, Kher Keep Overlord Sarkhan the Mad Setzer, Wandering Gambler Smaug the Impenetrable Smaug, Wicked Worm Strefan, Maurer Progenitor Swift Warkite Syrix, Carrier of the Flame Valgavoth, Harrower of Souls Vampiric Dragon Wake the Dragon Witch-king, Sky Scourge Zagras, Thief of Heartbeats

Played within a smattering of Standard, Modern, and Commander decks, Venerated Rotpriest can be an absolute menace