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