This deck does not appear to be legal in Standard (Season from Sep 2021).
Problems: Not legal in this format: Hissing Quagmire, Lumbering Falls, Needle Spires, Shambling Vent, Wandering Fumarole, Aerial Volley, Gnarlroot Trapper, Inventor's Apprentice, Outflank, Star Pupil, Stoneforge Masterwork, Thornbow Archer, Titan's Strength, Touch of Moonglove, Triton Shorestalker, Avacyn's Judgment, Coralhelm Guide, Earthen Arms, Elderfang Disciple, Elvish Visionary, Ensoul Artifact, Evolutionary Leap, Fetid Imp, Field Creeper, Grasp of the Hieromancer, Harbinger of the Tides, Just the Wind, Key to the City, Kujar Seedsculptor, Macabre Waltz, Merfolk Mistbinder, Murderous Compulsion, Nagging Thoughts, Nessian Hornbeetle, Ondu Rising, Pathmaker Initiate, Rabid Bite, Severed Strands, Shadows of the Past, Sigil of Valor, Sigiled Skink, Smash to Smithereens, Soothsayer Adept, Sungrace Pegasus, True-Faith Censer, Wrangle, Act of Treason, Angel's Tomb, Artificer's Epiphany, Blessed Spirits, Blood-Cursed Knight, Butcher's Cleaver, Calculated Dismissal, Celestial Enforcer, Chief of the Foundry, Chronicler of Heroes, Deeproot Waters, Demonic Embrace, Eerie Interlude, Expose to Daylight, Eyeblight Assassin, Fiery Temper, Funeral Rites, Furious Rise, Graveblade Marauder, Hydra's Growth, Ichthyomorphosis, Invigorating Surge, Iroas's Champion, Iron Bully, Jungleborn Pioneer, Kytheon's Tactics, Make Mischief, Mayhem Devil, Militant Inquisitor, Nantuko Husk, Nissa's Pilgrimage, Scatter to the Winds, Seer of the Last Tomorrow, Shaman of the Pack, Sheer Drop, Skyscanner, Spinning Wheel, Stampede Rider, Thopter Engineer, Tomebound Lich, Uncaged Fury, Unholy Indenture, Warden of Evos Isle, Watertrap Weaver, Aspiring Aeronaut, Avaricious Dragon, Blightcaster, Bone to Ash, Dance with Devils, Dwynen, Gilt-Leaf Daen, Electrify, Enthralling Victor, Eyeblight Massacre, Hulking Devil, Hunter's Edge, Jade Guardian, Kitchen Imp, Languish, Llanowar Empath, Quicksmith Rebel, Reclusive Artificer, Sarkhan's Unsealing, Seafloor Oracle, Springsage Ritual, Suppression Bonds, Tempest Caller, Thopter Spy Network, Thunderclap Wyvern, Triumphant Surge, Trusty Retriever, Weight of the Underworld, Zendikar Incarnate, Chandra's Fury, Experimental Aviator, Gilt-Leaf Winnower, Knightly Valor, Necromantic Summons, Patient Rebuilding, Patron of the Valiant, Priest of the Blood Rite, Salvager of Secrets, Sigil of the Empty Throne, Storm the Citadel, Tajuru Pathwarden, Totem-Guide Hartebeest, Tragic Arrogance, Twins of Maurer Estate, Unholy Hunger, Watcher in the Web, Zendikar's Roil, Deep-Sea Terror, Devils' Playground, Gold-Forged Sentinel, Primordial Wurm, Prodigious Growth, Sentinel of the Eternal Watch, Gaea's Revenge, Gideon's Phalanx, Nissa's Revelation.