This deck does not appear to be legal in Standard (Season from Sep 2021).
Problems: You cannot play more than 4 of: Disdainful Stroke, Daghatar the Adamant, Arc Lightning, Elite Scaleguard, Aeronaut Tinkerer, Amphin Pathmage, Blastfire Bolt, Blossoming Sands, Child of Night, Ephemeral Shields, Goblin Roughrider, Hunt the Weak, Lightning Strike, Mardu Scout, Negate, Nimbus of the Isles, Ornithopter, Peel from Reality, Pillar of Light, Selfless Cathar, Shadowcloak Vampire, Siege Wurm, Sign in Blood, Solemn Offering, Sungrace Pegasus, Typhoid Rats, Wall of Fire. · Not legal in this format: Dissolve, Flamerush Rider, Frenzied Goblin, Ajani Steadfast, Ajani, Mentor of Heroes, Ashcloud Phoenix, Chandra, Pyromaster, Clever Impersonator, Garruk, Apex Predator, Nylea, God of the Hunt, Prophetic Flamespeaker, Sarkhan, the Dragonspeaker, Sorin, Solemn Visitor, Aegis of the Gods, Altar of the Brood, Anger of the Gods, Bloodstained Mire, Boon Satyr, Bow of Nylea, Chief Engineer, Citadel Siege, Crater's Claws, Daghatar the Adamant, Deflecting Palm, Deicide, Dig Through Time, Dragon-Style Twins, Felhide Spiritbinder, Flooded Strand, Genesis Hydra, Goblin Kaboomist, Goblin Rabblemaster, Grim Haruspex, Hammer of Purphoros, Hardened Scales, Hero of Iroas, High Sentinels of Arashin, Hornet Nest, Howl of the Horde, Jeering Instigator, Kheru Spellsnatcher, Life's Legacy, Mantis Rider, Mass Calcify, Mob Rule, Nykthos, Shrine to Nyx, Ojutai, Soul of Winter, Phyrexian Revoker, Polluted Delta, Rakshasa Vizier, Resolute Archangel, Reverent Hunter, Satyr Firedancer, Steam Augury, Sultai Ascendancy, Temple of Epiphany, Temple of Plenty, Temple of Triumph, Waste Not, Yisan, the Wanderer Bard, Abzan Battle Priest, Abzan Falconer, Act on Impulse, Ajani's Pridemate, Akroan Hoplite, Altac Bloodseeker, Ancient Silverback, Arc Lightning, Archetype of Aggression, Archetype of Courage, Armament Corps, Banishing Light, Bassara Tower Archer, Battle Mastery, Become Immense, Belligerent Sliver, Bellowing Saddlebrute, Blinding Flare, Blood Host, Brave the Sands, Break Through the Line, Brood Keeper, Burnished Hart, Cached Defenses, Circle of Flame, Cone of Flame, Congregate, Constricting Sliver, Coordinated Assault, Cranial Archive, Dakra Mystic, Darksteel Citadel, Dead Drop, Death Frenzy, Demolish, Despise, Devouring Light, Diffusion Sliver, Dragon Grip, Dragonrage, Dragon's Eye Savants, Elite Scaleguard, Endless Obedience, Ensoul Artifact, Ephara's Enlightenment, Fanatic of Mogis, Fanatic of Xenagos, Favored Hoplite, Felhide Petrifier, First Response, Geist of the Moors, Gravedigger, Heat Ray, Highspire Mantis, Horizon Chimera, Hot Soup, Incremental Growth, Into the Void, Jace's Ingenuity, Jeskai Charm, Juggernaut, Kapsho Kitefins, Karametra's Acolyte, Kheru Bloodsucker, Kin-Tree Invocation, Kragma Warcaller, Leeching Sliver, Lightning Volley, Lotus-Eye Mystics, Magma Jet, Mardu Blazebringer, Mardu Roughrider, Master the Way, Meletis Astronomer, Merciless Executioner, Mer-Ek Nightblade, Mindscour Dragon, Mogis's Warhound, Murderous Cut, Mystic Monastery, Neutralizing Blast, Nissa's Expedition, Nyx Weaver, Opulent Palace, Ordeal of Heliod, Ordeal of Nylea, Ordeal of Purphoros, Overwhelm, Paragon of Eternal Wilds, Paragon of Fierce Defiance, Paragon of New Dawns, Paragon of Open Graves, Peregrination, Phalanx Leader, Pine Walker, Profane Memento, Pyrotechnics, Raiders' Spoils, Reap What Is Sown, Reclamation Sage, Restock, Ride Down, Roar of Challenge, Roaring Primadox, Rogue's Gloves, Ruthless Instincts, Ruthless Ripper, Satyr Nyx-Smith, Scion of Glaciers, Seeker of the Way, Shrapnel Blast, Siren of the Silent Song, Solidarity of Heroes, Spellheart Chimera, Spiteful Returned, Stab Wound, Staff of the Death Magus, Staff of the Flame Magus, Staff of the Mind Magus, Staff of the Sun Magus, Sultai Charm, Sunblade Elf, Suspension Field, Temur Charger, Tethmos High Priest, Thunderous Might, Tormented Hero, Triton Tactics, Tuskguard Captain, Ulcerate, Underworld Coinsmith, Vaultbreaker, Venerable Lammasu, Venom Sliver, Wall of Essence, Wall of Limbs, Wandering Champion, Watcher of the Roost, Winterflame, Witness of the Ages, Abomination of Gudul, Abzan Banner, Accursed Spirit, Act of Treason, Aeronaut Tinkerer, Ainok Bond-Kin, Ainok Tracker, Ajani's Presence, Alpine Grizzly, Amphin Pathmage, Aqueous Form, Arashin Cleric, Archers of Qarsi, Archers' Parapet, Armament of Nyx, Arrow Storm, Artful Maneuver, Aspect of Hydra, Asphyxiate, Aven Surveyor, Awaken the Bear, Baleful Eidolon, Bathe in Dragonfire, Bitter Revelation, Black Cat, Blastfire Bolt, Bloodcrazed Hoplite, Bloodfire Expert, Bloodfire Mentor, Borderland Marauder, Bring Low, Bronze Sable, Cancel, Carnivorous Moss-Beast, Carrion Crow, Charging Rhino, Child of Night, Chorus of the Tides, Claim of Erebos, Clear a Path, Collateral Damage, Coral Barrier, Covenant of Blood, Crippling Blight, Crippling Chill, Crowd's Favor, Cunning Strike, Debilitating Injury, Defiant Strike, Divination, Divine Favor, Douse in Gloom, Dutiful Return, Efreet Weaponmaster, Elvish Mystic, Embodiment of Spring, Encrust, Enhanced Awareness, Ephemeral Shields, Erase, Eternal Thirst, Ethereal Ambush, Fall of the Hammer, Fate Foretold, Feat of Resistance, Festergloom, Fierce Invocation, Firehoof Cavalry, Fleetfeather Sandals, Flesh to Dust, Font of Fertility, Font of Fortunes, Font of Ire, Font of Return, Font of Vigor, Force Away, Foundry Street Denizen, Frost Lynx, Fugitive Wizard, Generator Servant, Glacial Crasher, Goblin Heelcutter, Goblin Roughrider, Godhunter Octopus, Gods Willing, Gray Merchant of Asphodel, Great Hart, Heliod's Pilgrim, Highland Game, Hooded Assassin, Hooting Mandrills, Hunt the Weak, Hunter's Ambush, Hydrosurge, Impetuous Sunchaser, Inferno Fist, Invasive Species, Invisibility, Jeskai Runemark, Jeskai Sage, Jeskai Windscout, Kheru Dreadmaw, Kinsbaile Skirmisher, Kin-Tree Warden, Krenko's Enforcer, Krumar Bond-Kin, Lava Axe, Leaping Master, Lens of Clarity, Living Totem, Longshot Squad, Loyal Pegasus, Magma Spray, Mardu Hateblade, Mardu Hordechief, Mardu Scout, Mardu Warshrieker, Marked by Honor, Market Festival, Meditation Puzzle, Midnight Guard, Mind Sculpt, Miner's Bane, Monastery Flock, Mortal Obstinacy, Mortal's Resolve, Naturalize, Necrobite, Necromancer's Assistant, Netcaster Spider, Nimbus of the Isles, Nylea's Disciple, Nyx Infusion, Nyxborn Rollicker, Omenspeaker, Oppressive Rays, Ornithopter, Peel from Reality, Pheres-Band Tromper, Pillar of Light, Pressure Point, Radiant Fountain, Raise the Alarm, Rakshasa's Secret, Ranger's Guile, Ravenous Leucrocota, Ray of Dissolution, Razorfoot Griffin, Read the Bones, Retraction Helix, Return to the Earth, Rite of the Serpent, Rotfeaster Maggot, Rotting Mastodon, Runeclaw Bear, Rush of Battle, Sage-Eye Harrier, Sandblast, Sandsteppe Outcast, Satyr Hoplite, Satyr Wayfinder, Savage Punch, Savage Surge, Scaldkin, Scouring Sands, Seismic Strike, Selfless Cathar, Shadowcloak Vampire, Shaman of Spring, Shatter, Sibsig Host, Sidisi's Pet, Siege Wurm, Siegecraft, Sigiled Starfish, Sign in Blood, Smite the Monstrous, Snowhorn Rider, Solemn Offering, Soulmender, Spark Jolt, Statute of Denial, Stratus Walk, Sultai Banner, Sultai Emissary, Sultai Runemark, Sultai Scavenger, Sultai Skullkeeper, Sungrace Pegasus, Swift Kick, Swordwise Centaur, Taigam's Scheming, Tasigur's Cruelty, Temur Battle Rage, Temur Runemark, Throttle, Thundering Giant, Tireless Missionaries, Titan's Strength, Torch Fiend, Tormenting Voice, Treasure Cruise, Triplicate Spirits, Tusked Colossodon, Two-Headed Cerberus, Typhoid Rats, Tyrant's Machine, Undergrowth Scavenger, Unmake the Graves, Valley Dasher, Verdant Haven, Vineweft, Void Snare, Wall of Fire, War Behemoth, War Flare, Welkin Tern, Whirlwind Adept, Will-Forged Golem, Wingsteed Rider, Witch's Familiar, Woolly Loxodon, Zof Shade.