This deck does not appear to be legal in Standard (Season from Sep 2021).
Problems: You cannot play more than 4 of: Bonecrusher Giant // Stomp, Lovestruck Beast // Heart's Desire, Mystical Dispute, Embercleave, Robber of the Rich, Redcap Melee, Edgewall Innkeeper, Brazen Borrower // Petty Theft, Spikefield Hazard // Spikefield Cave, Primal Might, Negate, Scavenging Ooze, Questing Beast, Kazandu Mammoth // Kazandu Valley, Thundering Rebuke, Rimrock Knight // Boulder Rush, Bloodchief's Thirst, Beanstalk Giant // Fertile Footsteps, Shatterskull Smashing // Shatterskull, the Hammer Pass, Lucky Clover, Heartless Act, Garruk's Harbinger, Fervent Champion, Fae of Wishes // Granted, Escape to the Wilds, Embereth Shieldbreaker // Battle Display, Anax, Hardened in the Forge, Akoum Hellhound, Turntimber Symbiosis // Turntimber, Serpentine Wood, Shock, Shark Typhoon, Neutralize, Essence Scatter. · Not legal in this format: Bonecrusher Giant // Stomp, Lovestruck Beast // Heart's Desire, Mystical Dispute, Embercleave, Robber of the Rich, Redcap Melee, Edgewall Innkeeper, Brazen Borrower // Petty Theft, Spikefield Hazard // Spikefield Cave, Primal Might, Scavenging Ooze, Questing Beast, Kazandu Mammoth // Kazandu Valley, Thundering Rebuke, Rimrock Knight // Boulder Rush, Bloodchief's Thirst, Beanstalk Giant // Fertile Footsteps, Shatterskull Smashing // Shatterskull, the Hammer Pass, Lucky Clover, Heartless Act, Garruk's Harbinger, Fervent Champion, Fae of Wishes // Granted, Escape to the Wilds, Embereth Shieldbreaker // Battle Display, Anax, Hardened in the Forge, Akoum Hellhound, Turntimber Symbiosis // Turntimber, Serpentine Wood, Shark Typhoon, Neutralize, Thieves' Guild Enforcer, Stonecoil Serpent, Soaring Thought-Thief, Roiling Vortex, Omnath, Locus of Creation, Nighthawk Scavenger, Lotus Cobra, Kargan Intimidator, Gemrazer, Eliminate, Elder Gargaroth, Drown in the Loch, Agonizing Remorse, Zareth San, the Trickster, Ugin, the Spirit Dragon, Torbran, Thane of Red Fell, The Great Henge, Swarm Shambler, Ram Through, Merfolk Windrobber, Jwari Disruption // Jwari Ruins, Hagra Mauling // Hagra Broodpit, Giant Killer // Chop Down, Garruk, Unleashed, Frantic Inventory, Extinction Event, Confounding Conundrum, Cling to Dust, Ashiok's Erasure, Agadeem's Awakening // Agadeem, the Undercrypt, Yorvo, Lord of Garenbrig, Voracious Greatshark, Storm's Wrath, Scorching Dragonfire, Roil Eruption, Rankle, Master of Pranks, Phoenix of Ash, Murderous Rider // Swift End, Elspeth Conquers Death, Claim the Firstborn, Yorion, Sky Nomad, Vivien, Monsters' Advocate, Skyclave Apparition, Shadowspear, Sea Gate Restoration // Sea Gate, Reborn, Relic Robber, Radha, Heart of Keld, Once and Future, Lurrus of the Dream-Den, Klothys, God of Destiny, Kazuul's Fury // Kazuul's Cliffs, Inscription of Abundance, Glasspool Mimic // Glasspool Shore, Gadwick, the Wizened, Fling, Fireblade Charger, Cinderclasm, Chainweb Aracnir, Brushfire Elemental, Blacklance Paragon, Blackbloom Rogue // Blackbloom Bog, Basri's Lieutenant, Ashiok, Nightmare Muse, Archon of Emeria.