Capable of being shifted for free at any time (if you have one-cost Diablo in play or a Morph like Zan includes here), Diablo grants you extra cards whenever your opponent draws
The dimensions of the card mirrors a regular Lorcana card so you can include it seamlessly into your deck or collection
Mono U could likely support a rare mill deck (Ruin Crab, Maddening Cacophony, Field Research, Glacial Grasp, blockers like Skyclave Squid to fill the curve, etc), though most Mono-Blue inclined decks will likely just end up UB
Artillery Blast Aven Trailblazer Bortuk Bonerattle Briar Hydra Drag Down Drag to the Bottom Exploding Borders Gaea's Might Herd Migration Jodah's Codex Leyline Binding Llanowar Greenwidow Manaforce Mace Matca Rioters Meria's Outrider Might of Alara Nael, Avizoa Aeronaut Nishoba Brawler Radha's Firebrand Radha, Coalition Warlord Scion of Draco Shadow Prophecy Slimefoot's Survey Sphinx of Clear Skies Spore Burst Sunbathing Rootwalla Territorial Kavu Territorial Maro The Weatherseed Treaty Tribal Flames Tromp the Domains Voda Sea Scavenger Voices from the Void Wandering Goblins Worldly Counsel Yavimaya Sojourner Zar Ojanen, Scion of Efrava
Effects like Maskwood Nexus have proved popular in the past, and a commander that can do that is sure to draw some popularity
