These are the sets that are legal in the Standard format:
Polyraptor
Revel in Riches
Tendershoot Dryad
The Immortal Sun
Trapjaw Tyrant
Primal Amulet|Primal Wellspring
Rampaging Ferocidon
Huatli, Dinosaur Knight
Nezahal, Primal Tide
Storm the Vault|Vault of Catlacan
Silverclad Ferocidons
Carnage Tyrant
Huatli, Radiant Champion
Pitiless Plunderer
Gishath, Sun's Avatar
Herald of Secret Streams
Huatli, Warrior Poet
Journey to Eternity|Atzal, Cave of Eternity
Settle the Wreckage
World Shaper