Like poor seven-card-grip Luis in this scenario, you can have a full hand but no action
Or, just draw your whole deck with Wall of Omens
Each card requires multiple types of energy to attack, which means that players often can't feature alternate attackers in their decks

Stalwart Unity Kynaios and Tiro of Meletis | Illustration by Willian Murai Commander (1) Creature (22) Veteran Explorer Humble Defector Hushwing Gryff Orzhov Advokist Chasm Skulker Gwafa Hazid, Profiteer Ludevic, Necro-Alchemist Selvala, Explorer Returned Edric, Spymaster of Trest Akroan Horse Selfless Squire Windborn Muse Sidar Kondo of Jamuraa Horizon Chimera Zedruu the Greathearted Psychosis Crawler Kazuul, Tyrant of the Cliffs Kraum, Ludevic's Opus Realm Seekers Rubblehulk Progenitor Mimic Blazing Archon Instant (9) Swords to Plowshares Swan Song Arcane Denial Benefactor's Draught Oblation Beast Within Entrapment Maneuver Reins of Power Sylvan Reclamation Sorcery (11) Minds Aglow Collective Voyage Cultivate Kodama's Reach Tempt with Discovery Wave of Reckoning Migratory Route Seeds of Renewal Reverse the Sands Treacherous Terrain Blasphemous Act Enchantment (8) Evolutionary Escalation Oath of Druids Ghostly Prison Propaganda Rites of Flourishing Sphere of Safety Lurking Predators Hoofprints of the Stag Artifact (9) Sol Ring Empyrial Plate Howling Mine Commander's Sphere Temple Bell Assault Suit Prismatic Geoscope Venser's Journal Keening Stone Land (40) Ash Barrens Azorius Chancery Command Tower Evolving Wilds Exotic Orchard Forbidden Orchard Frontier Bivouac Gruul Turf Homeward Path Izzet Boilerworks Jungle Shrine Krosan Verge Myriad Landscape Mystic Monastery Opal Palace Rupture Spire Seaside Citadel Selesnya Sanctuary Terramorphic Expanse Transguild Promenade Plains x5 Island x5 Mountain x5 Forest x5 Commander, Themes, and Strategy This ones a bit interesting

Being able to get chaff off the top of your library is always a good move, and for four mana Carth does it excellently