the deck mainly revolves around Saphire Pegasus and Ruby Carbuncle spamming out a wall of crystal beasts and hoping you draw into Neos fusion/Ultimate Crystal Magic to bring out the 2 boss monsters of the deck (Rainbow Neos/Rainbow Overdragon).
Rainbow Dragon, the Zenith Crystal Beast helps greatly in punishing attacks by literally slapping a 3k wall on them which for a deck as old as Crystal beasts, is pretty funny.
The rest of the deck is basic Crystal beast plays (Crystal Bonds for Saphire Pegasus and placing Ruby Carbuncle, Rainbow bridge to search the needed Crystal Beast and Crystal Promise to special Ruby Carbuncle and special all other Crystal Beasts in Spell/Trap zone)
The side deck consists of a small PSY-Frame engine, Pankratops (because Pankratops) and a few other tech cards to help in certain match-ups