This deck does not appear to be legal in Standard (Season from Sep 2021).
Problems: You cannot play more than 4 of: Growth Spiral, Mystical Dispute, Shark Typhoon, Uro, Titan of Nature's Wrath, Aether Gust, Scorching Dragonfire, Wilderness Reclamation, Teferi, Time Raveler, Nightpack Ambusher, Expansion // Explosion, Brazen Borrower // Petty Theft, Negate, Elspeth Conquers Death, Shatter the Sky, Glass Casket, Witch's Oven, Nissa, Who Shakes the World, Mayhem Devil, Dovin's Veto, Claim the Firstborn, Cauldron Familiar, Bonecrusher Giant // Stomp, Agonizing Remorse, Woe Strider, Wilt, Rotting Regisaur, Priest of Forgotten Gods, Opt, Narset, Parter of Veils, Hydroid Krasis, Gilded Goose, Flame Sweep, Duress. · Not legal in this format: Growth Spiral, Mystical Dispute, Shark Typhoon, Uro, Titan of Nature's Wrath, Aether Gust, Scorching Dragonfire, Wilderness Reclamation, Teferi, Time Raveler, Nightpack Ambusher, Expansion // Explosion, Brazen Borrower // Petty Theft, Elspeth Conquers Death, Shatter the Sky, Witch's Oven, Nissa, Who Shakes the World, Mayhem Devil, Dovin's Veto, Claim the Firstborn, Cauldron Familiar, Bonecrusher Giant // Stomp, Agonizing Remorse, Woe Strider, Wilt, Rotting Regisaur, Priest of Forgotten Gods, Opt, Narset, Parter of Veils, Hydroid Krasis, Gilded Goose, Flame Sweep, Trail of Crumbs, Stonecoil Serpent, Fervent Champion, Embereth Shieldbreaker // Battle Display, Embercleave, Commence the Endgame, Thought Erasure, Shifting Ceratops, Robber of the Rich, Questing Beast, Pelt Collector, Omen of the Sea, Neutralize, Lovestruck Beast // Heart's Desire, Lava Coil, Korvold, Fae-Cursed King, Heartless Act, Gutterbones, Gemrazer, Devout Decree, Cindervines, Yorion, Sky Nomad, Torbran, Thane of Red Fell, Thought Distortion, Thassa's Intervention, Tamiyo, Collector of Tales, Storm's Wrath, Scorch Spitter, Runaway Steam-Kin, Redcap Melee, Oath of Kaya, Noxious Grasp, Knight of the Ebon Legion, Heliod's Intervention, Extinction Event, Dream Trawler, Dreadhorde Butcher, Cry of the Carnarium, Chemister's Insight, Casualties of War, Bolas's Citadel, Barkhide Troll, Anax, Hardened in the Forge, Yorvo, Lord of Garenbrig, Unchained Berserker, Tolsimir, Friend to Wolves, Tin Street Dodger, Tibalt, Rakish Instigator, Stormfist Crusader, Spectral Sailor, Shadowspear, Scavenging Ooze, Rimrock Knight // Boulder Rush, Paradise Druid, Oakhame Adversary, Narset's Reversal, Murderous Rider // Swift End, Midnight Reaper, Lurrus of the Dream-Den, Knight of Autumn, Klothys, God of Destiny, Blacklance Paragon, Archon of Sun's Grace.