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, Rogue's Passage, Shambling Vent, Wandering Fumarole, Aerial Volley, Elvish Mystic, Mist-Cloaked Herald, Outflank, Star Pupil, Stoneforge Masterwork, Titan's Strength, Unwilling Ingredient, Avacyn's Judgment, Coralhelm Guide, Earthen Arms, Elderfang Disciple, Elvish Visionary, Ensoul Artifact, Evolutionary Leap, Fencing Ace, Field Creeper, Frogify, Grasp of the Hieromancer, Infernal Scarring, Jace's Scrutiny, Just the Wind, Key to the City, Macabre Waltz, Merfolk Mistbinder, Mighty Leap, Murderous Compulsion, Nessian Hornbeetle, Ondu Rising, Pathmaker Initiate, Rabid Bite, Ravaging Blaze, Severed Strands, Shadows of the Past, Sigil of Valor, Sigiled Skink, Smash to Smithereens, Sungrace Pegasus, True-Faith Censer, Act of Treason, Anchor to the Aether, Angelic Sleuth, Artificer's Epiphany, Blessed Spirits, Blood-Cursed Knight, Butcher's Cleaver, Calculated Dismissal, Celestial Enforcer, Chronicler of Heroes, Deeproot Waters, Displace, Eerie Interlude, Emry, Lurker of the Loch, Expose to Daylight, Eyeblight Assassin, Fiery Temper, Furious Rise, Hydra's Growth, Iroas's Champion, Iron Bully, Jungleborn Pioneer, Make Mischief, Nantuko Husk, Nissa's Pilgrimage, Onakke Ogre, Quicksmith Genius, Read the Bones, Root Out, Scatter to the Winds, Seer of the Last Tomorrow, Shaman of the Pack, Sheer Drop, Survive the Night, Teyo's Lightshield, Tomebound Lich, Uncaged Fury, Watertrap Weaver, Anvilwrought Raptor, Aspiring Aeronaut, Blightcaster, Bone to Ash, Brawl-Bash Ogre, Crypt Lurker, Dance with Devils, Dwynen, Gilt-Leaf Daen, Electrify, Enthralling Victor, Eyeblight Massacre, Goreclaw, Terror of Qal Sisma, Hulking Devil, Hunter's Edge, Jade Guardian, Kitchen Imp, Languish, Lifecrafter's Gift, Llanowar Empath, Pride of the Perfect, Quicksmith Rebel, Reclusive Artificer, Sarkhan's Unsealing, Seafloor Oracle, Suppression Bonds, Thopter Spy Network, Thunderclap Wyvern, Trusty Retriever, Weight of the Underworld, Zendikar Incarnate, Confirm Suspicions, Experimental Aviator, Gilt-Leaf Winnower, Goblin Dark-Dwellers, Knightly Valor, Necromantic Summons, Priest of the Blood Rite, Psychosis Crawler, Rhox Oracle, Salvager of Secrets, Sigil of the Empty Throne, Squad Captain, 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, Skaab Goliath, Skysnare Spider, Urbis Protector, Gideon's Phalanx, Nissa's Revelation.