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

Eerie Ultimatum (Ikoria: Lair of Behemoths #184)
Ghalta and Mavren (March of the Machine #225)
Trostani, Selesnya's Voice (Return to Ravnica #206)
Titanic Ultimatum (Shards of Alara #204)
Progenitus (Conflux #121)
Armada Wurm (Return to Ravnica #143)
Novablast Wurm (Worldwake #119)
Krond the Dawn-Clad (Planechase 2012 #99)
Autochthon Wurm (Ravnica: City of Guilds #191)
Conclave Cavalier (Guilds of Ravnica #161)
Arcades Sabboth (Legends #218)
Clarion Ultimatum (Shards of Alara #163)
Chorus of the Conclave (Ravnica: City of Guilds #195)
Palladia-Mors (Legends #247)
Gabriel Angelfire (Legends #226)
Lady Caleria (Legends #239)
Brightglass Gearhulk (Aetherdrift #191)
Begin Anew (Alchemy: Innistrad #57)

It is the moment of discovery, the triumph of the mind, and the end of these results.