52 cards where the cards aren’t reprints and the mana cost is greater than or equal to {4}{G}{W}

Zacama, Primal Calamity (Rivals of Ixalan #174)
Gishath, Sun's Avatar (Ixalan #222)
Dragonlord Dromoka (Dragons of Tarkir #217)
The Ur-Dragon (Commander 2017 #48)
Hamza, Guardian of Arashin (Commander Legends #278)
Camaraderie (Guilds of Ravnica #157)
Duneblast (Khans of Tarkir #174)
Archon of Valor's Reach (Battlebond #74)
Aragorn and Arwen, Wed (The Lord of the Rings: Tales of Middle-earth #287)
Myrkul, Lord of Bones (Commander Legends: Battle for Baldur's Gate #287)
Ajani Unyielding (Aether Revolt #127)
Tolsimir Wolfblood (Ravnica: City of Guilds #236)
Primeval Spawn (Dominaria United Commander #13)
Karador, Ghost Chieftain (Commander 2011 #207)
Emmara Tandris (Dragon's Maze #68)
Enduring Scalelord (Dragons of Tarkir #222)
Yuma, Proud Protector (Outlaws of Thunder Junction Commander #4)
Byrke, Long Ear of the Law (Bloomburrow #380)
Almost Perfect (Fallout #90)
Nazahn, Revered Bladesmith (Commander 2017 #44)
Storvald, Frost Giant Jarl (Forgotten Realms Commander #55)
Phantom Nishoba (Judgment #140)
Pollenbright Wings (Ravnica: City of Guilds #219)
Godsire (Shards of Alara #170)
Torsten, Founder of Benalia (Dominaria United Commander #47)
Ultra Magnus, Tactician // Ultra Magnus, Armored Carrier (Transformers #15)
Ultra Magnus, Tactician // Ultra Magnus, Armored Carrier (Transformers #15)
Trostani's Summoner (Dragon's Maze #110)
Ajani, Valiant Protector (Aether Revolt #185)
Enlisted Wurm (Alara Reborn #68)
Soul of Emancipation (Streets of New Capenna #223)
Indrik Umbra (Planechase 2012 #96)
Belligerent Brontodon (Ixalan #218)
Flower // Flourish (Guilds of Ravnica #226)
Assure // Assemble (Guilds of Ravnica #221)
Autochthon Wurm (Ravnica: City of Guilds #191)
Empyrial Archangel (Shards of Alara #166)
Pale Recluse (Alara Reborn #74)
Hazezon Tamar (Legends #230)
Vernal Sovereign (Ravnica: Clue Edition #51)
Arashin Sovereign (Dragons of Tarkir #212)
Chorus of the Conclave (Ravnica: City of Guilds #195)
Vagrant Plowbeasts (Conflux #129)
Coursers' Accord (Return to Ravnica #154)
Woodvine Elemental (Conspiracy #52)
Sigiled Behemoth (Alara Reborn #79)
Relive the Past (Murders at Karlov Manor #226)
Sabertooth Nishoba (Invasion #268)
Sir Shandlar of Eberyn (Legends #257)
Risen Sanctuary (Return to Ravnica #190)
Guardian of Vitu-Ghazi (Ravnica: City of Guilds #212)
Steel Leaf Paladin (Planeshift #127)
Who // What // When // Where // Why (Unhinged #120)

Though this query has ended, its relics still slumber in New Argive.