Unsurprisingly, he will be very powerful indeed.
Not only do you kill bigger badder things in the late game you also suffer less ill effects from playing a card with such poor mana efficiency
Each series tells its own story with a new cast of duelists and adventures

This card serves as your "commander" with unique abilities that make plays even more powerful INCLUDES ACCESSORIES AND DECK BOX: Also comes with 10 two-sided tokens, a deck box for storage, and punchout counters to keep track of creature buffs Token Triumph Commander (1) Planeswalker (1) Creature (26) Mentor of the Meek Champion of Lambholt Citanul Hierophants Hornet Nest Hornet Queen Rishkar, Peema Renegade Scavenging Ooze Thunderfoot Baloth Verdant Force Dauntless Escort Trostani Discordant Avacyn's Pilgrim Eternal Witness Farhaven Elf Great Oak Guardian Jade Mage Jaspera Sentinel Leafkin Druid Loyal Guardian Nullmage Shepherd Reclamation Sage Sporemound Voice of Many Maja, Bretagard Protector Selesnya Evangel Selesnya Guildmage Instant (8) White Sun's Zenith Aura Mutation March of the Multitudes Devouring Light Path to Exile Rootborn Defenses Scatter the Seeds Sylvan Reclamation Sorcery (8) Citywide Bust Hour of Reckoning Collective Unconscious Harvest Season Camaraderie Harmonize Nissa's Expedition Overrun Enchantment (11) Commander's Insignia Dawn of Hope Dictate of Heliod Felidar Retreat Collective Blessing Conclave Tribunal Valor in Akros Curse of Bounty Karametra's Favor Overwhelming Instinct Presence of Gond Artifact (6) Idol of Oblivion Slate of Ancestry Arcane Signet Commander's Sphere Sol Ring Talisman of Unity Land (39) Canopy Vista Fortified Village Temple of Plenty Blossoming Sands Command Tower Elfhame Palace Graypelt Refuge Holdout Settlement Tranquil Expanse Vitu-Ghazi, the City-Tree Forest x15 Plains x14 Commander, Theme, and Strategy Emmara, Soul of the Accord | Illustration by Mark Winters Token Triumph is commanded by Emmara, Soul of the Accord

We can also see Mewtwo V, this card was included as a Regular card, a Full Art card, and a Special Full Art card in the Pokmon GO expansion
Sure, you will likely get a win or two off with the instant-lose ability, but getting a six or seven drop legendary creature out on turn two or three is much more reliable