The Extra Deck includes one copy of "Starving Venom Fusion Dragon" as previously mentioned, which is a solid monster all around, one copy of "Reptilianne Hydra" as a situational option to summon using "Reptilianne Lamia", one "King of the Feral Imps" as a Reptile monster searcher, one "Tornado Dragon" for backrow removal, one "Castel the Skyblaster Musketeer" to get rid of monsters that you cannot handle using the destruction effects in the Main Deck, one "Evilswarm Exciton Knight" to reset the board, two copies of "Reptilianne Echidna" as a very solid searcher, two copies of "Alien Shocktrooper M-Frame", which is basically the Reptile version of "Soul Charge" and is easily capable of filling your board since the graveyard should be rammed full with various monsters to summon, one "Underclock Taker" helps running over bigger monsters, the entire "Knightmare" package for obvious reasons, and one "Borrelsword Dragon" as a generic boss monster to kick the opponent with

Young OG didn't specify how difficult this deck is to play
You want to attack with Squall alone, then use its damage trigger to recur two permanents (or the same permanent twice, if you can sacrifice it between triggers)
8 Flygon Ex (Delta Species) $73.32 Falling Short Of The Big Leagues Flygon ex narrowly takes the lead over Gardevoir, hanging on to a sub-two dollar lead for dear life, as it seems like Flygon stole what should have been Gardevoir's background along with its spot among the best Dragon Frontiers cards