The genius of this card is the teal blue glow that highlights the feathers of its back, shining in the mirror over the mantel, and glinting off the walls
Otherwise, you're introduced to a whole new character on a league card

Table of Contents show The Deck Herald of Kozilek | Illustration by Johannes Voss Commander (1) Planeswalker (2) Ugin, the Ineffable Vivien, Champion of the Wilds Creature (34) Abstruse Archaic Anticausal Vestige Azlask, the Swelling Scourge Changeling Wayfinder Conduit of Ruin Desolation Twin Drowner of Hope Drowner of Truth Eldrazi Mimic Emrakul, the World Anew Flayer of Loyalties Glaring Fleshraker Herald of Kozilek Hideous Taskmaster Hope-Ender Coatl It That Heralds the End Kozilek, Butcher of Truth Kozilek, the Broken Reality Liberator, Urza's Battlethopter Mischievous Sneakling Mutable Explorer Nulldrifter Oblivion Sower Palladium Myr Roaming Throne Sire of Seven Deaths Sire of Stagnation Skittering Cicada Sowing Mycospawn Thief of Existence Ulamog, the Ceaseless Hunger Ulamog, the Defiler Vile Redeemer World Breaker Instant (7) Abstruse Appropriation Crib Swap Desecrate Reality Eldrazi Confluence Eldritch Immunity Null Elemental Blast Swords to Plowshares Sorcery (4) All Is Dust Ancient Stirrings Rise of the Eldrazi Skittering Invasion Enchantment (4) Echoes of Eternity Kozilek's Unsealing Leyline of Anticipation Ugin's Mastery Artifact (14) Arcane Signet Darksteel Monolith Expedition Map Fellwar Stone Firdoch Core Forsaken Monument Hedron Archive Mana Vault Mind Stone Mystic Forge Sol Ring Thran Dynamo Urza's Incubator Vedalken Orrery Land (34) Adarkar Wastes Alchemist's Refuge Battlefield Forge Brushland Caves of Koilos Eldrazi Temple Eye of Ugin Forest Guildless Commons Island Karplusan Forest Llanowar Wastes Mountain Plains Shivan Reef Shrine of the Forsaken Gods Sulfurous Springs Swamp Tomb of the Spirit Dragon Ugin's Labyrinth Underground River Urza's Cave Urza's Mine Urza's Power Plant Urza's Saga Urza's Tower Wastes x7 Yavimaya Coast This deck is a pseudo 5-color deck

Arc mages arent known for their patience
If no one's drawing extra cards or playing strong MTG mana ramp or fetch lands, it's going to feel like a waste
Just make sure to include Gravitational Shift or Always Watching to keep things up in the air