1 Space Marine Devastator 1 Triumph of Saint Katherine 1 Ultramarines Honour Guard 1 Vexilus Praetor 1 Zephyrim 1 And They Shall Know No Fear 1 Grey Knight Paragon 1 Space Marine Scout 1 Thunderwolf Cavalry 1 Bastion Protector 1 Collective Effort 1 Deploy to the Front 1 Entrapment Maneuver 1 Fell the Mighty 1 Hour of Reckoning 1 Launch the Fleet 1 Martial Coup 1 Swords to Plowshares Black (3) 1 Arco-Flagellant 1 Primaris Eliminator 1 Sanguinary Priest Multi colored (19) 1 Marneus Calgar 1 Assault Intercessor 1 Belisarius Cawl 1 Birth of the Imperium 1 Callidus Assassin 1 Commissar Severina Raine 1 Company Commander 1 Cybernetica Datasmith 1 Epistolary Librarian 1 Exterminatus 1 The Flesh Is Weak 1 Inquisitor Eisenhorn 1 Neyam Shai Murad 1 Sister Hospitaller 1 Sister Repentia 1 Deny the Witch 1 Primaris Chaplain 1 Utter End 1 Mortify Colorless (52) 1 The Golden Throne 1 Inquisitorial Rosette 1 Knight Paladin 1 Reaver Titan 1 Redemptor Dreadnought 1 Thunderhawk Gunship 1 Everflowing Chalice 1 Choked Estuary 1 Darkwater Catacombs 1 Exotic Orchard 1 Port Town 1 Prairie Stream 1 Skycloud Expanse 1 Sunken Hollow 1 Mind Stone 1 Skullclamp 1 Sol Ring 1 Talisman of Dominance 1 Talisman of Hierarchy 1 Talisman of Progress 1 Arcane Sanctum 1 Ash Barrens 1 Memorial to Glory 1 Arcane Signet 1 Commander's Sphere 1 Command Tower 1 Dismal Backwater 1 Evolving Wilds 1 Path of Ancestry 1 Scoured Barrens 1 Terramorphic Expanse 1 Tranquil Cove 5 Island 7 Swamp 8 Plains 1 (4) 1 Launch the Fleet 1 Swords to Plowshares 1 Skullclamp 1 Sol Ring 2 (8) 1 Inquisitorial Rosette 1 And They Shall Know No Fear 1 Martial Coup 1 Mind Stone 1 Talisman of Dominance 1 Talisman of Hierarchy 1 Talisman of Progress 1 Arcane Signet 3 (11) 1 Defenders of Humanity 1 Arco-Flagellant 1 Assault Intercessor 1 Commissar Severina Raine 1 Cybernetica Datasmith 1 Space Marine Scout 1 Sicarian Infiltrator 1 Bastion Protector 1 Collective Effort 1 Mortify 1 Commander's Sphere 4 (18) 1 For the Emperor

This artifact is a crucial cog to many infinite combos within Commander
The most common way to mis-evaluate a card in magic is to think a good or fine card is better than it is
What you wanted with this kind of card is to start it off as a 3/3 for 3 mana, and let it eat a bunch of knights for breakfast and build up into a sizable critter (keeping in mind that the first upkeep is probably going to come before it gets a chance to attack)
Well of Lost Dreams is insane when played late game for Brion's lifelink ability and can be fetched with Hoarding Dragon or Open the Armory Sin Prodder gives me a potential extra card per turn, or the chance for an opponent to take damage to the face
You'll play a lot of Rabbits, which will allow you to create a lot of Rabbit tokens, which will let you build up a giant army that you can then swarm with to defeat your opponent