Like most Pokmon cards, the value of Hitmonchan depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Unseen Forces)
Artificer Class I quite like Artificer Class for its efficiency and how this blue enchantment combats the traditional weakness of a mana rock: late-game irrelevancy

Decklist: Vito, Thorn of the Dusk Rose in EDH Exquisite Blood | Illustration by Cynthia Sheppard Commander (1) Planeswalker (1) Creature (26) Accursed Marauder Ayara, First of Locthwain Blood Artist Bloodletter of Aclazotz Bloodthirsty Aerialist Bloodthirsty Conqueror Creeping Bloodsucker Crypt Ghast Dread Presence Enduring Tenacity Falkenrath Noble Gifted Aetherborn Gray Merchant of Asphodel Marauding Blight-Priest Markov Baron Nighthawk Scavenger Nullpriest of Oblivion Sanctum Seeker Sangromancer Sephiroth, Fabled SOLDIER Shard of the Nightbringer Vampire of the Dire Moon Veinwitch Coven Vein Ripper Vraan, Executioner Thane Zulaport Cutthroat Enchantment (7) Black Market Connections Exquisite Blood Gonti's Machinations Greed Palace Siege Phyrexian Arena Sanguine Bond Artifact (13) Aetherflux Reservoir Alhammarret's Archive Arcane Signet Bolas's Citadel Bontu's Monument Cosmos Elixir Demon's Horn Jet Medallion Mind Stone Pristine Talisman Sol Ring Staff of the Death Magus Tithing Blade Instant (7) Consuming Corruption Crypt Incursion Dark Ritual Erebos's Intervention Fell the Profane Hagra Mauling Infernal Grasp Sorcery (10) Blood Tribute Corrupt Demonic Tutor Diabolic Tutor Exsanguinate Feed the Swarm Insatiable Avarice Night's Whisper Sign in Blood Toxic Deluge Land (34) Bojuka Bog Cabal Coffers Cabal Stronghold Castle Locthwain Nykthos, Shrine to Nyx Radiant Fountain Swamp x27 Witch's Cottage Vito, Thorn of the Dusk Rose turns lifegain into a weapon

A 6000-power leader with 6 life was already a massive statement, even with the drawback of taking a life card at the end of your turn