With 180 HP and no Moves that require you to discard Energy when you use them, this card feels like a sleeping giant
Genku, Future Shaper isnt bad by any stretch, but it cant fulfill its potential without any good ways to enable its ability
This card is playable because of the body and Learn is just a good extra

Theft Decks Evelyn, the Covetous | Illustration by Marta Nael Commander (1) Planeswalker (1) Creature (23) Ragavan, Nimble Pilferer Thieving Skydiver Baleful Strix Robber of the Rich Dire Fleet Daredevil Valki, God of Lies Grenzo, Havoc Raiser Dauthi Voidwalker Thief of Sanity Halo Forager Vedalken Plotter Cosima, God of the Voyage Nightveil Specter Thada Adel, Acquisitor Kheru Mind-Eater Hostage Taker Don Andres, the Renegade Gonti, Lord of Luxury Evil Twin Zareth San, the Trickster Plargg and Nassari Author of Shadows Xanathar, Guild Kingpin Instant (10) You Find Some Prisoners Fumble Siphon Insight Rakdos Charm Sudden Spoiling Crosis's Charm Fierce Guardianship Maestros Charm Memory Plunder Nurgle's Conscription Sorcery (8) Inevitable Betrayal Extract Brain Praetor's Grasp Evacuation Devastation Tide Blatant Thievery Breach the Multiverse Fevered Suspicion Enchantment (5) Mirrormade King Narfi's Betrayal Leyline of Anticipation The Ruinous Powers Mind's Dilation Artifact (14) Sol Ring Thaumatic Compass Dimir Signet Fellwar Stone Arcane Signet Rakdos Signet Izzet Signet Crystal Shard Vedalken Shackles Commander's Sphere Realmbreaker, the Invasion Tree Mirage Mirror Solemn Simulacrum Wand of Wonder Land (38) Polluted Delta Sunken Hollow Fetid Pools Morphic Pool Watery Grave Training Center Steam Vents Scalding Tarn Luxury Suite Blood Crypt Dragonskull Summit Haunted Ridge Path of Ancestry Command Tower Exotic Orchard Crumbling Necropolis Xander's Lounge Maestros Theater Ash Barrens Evolving Wilds Bojuka Bog Mystic Sanctuary Thespian's Stage Mountain x4 Swamp x2 Island x9 Theft decks want to turn their opponents decks against themselves

It takes a little creativity to get a worthwhile number of Mountains into play , but once they're there, you'll have enough mana for some other bombs
As you can imagine, Expanded is a huge format with a wide variety of decks