Dragon Monsters have incredibly powerful effects, and it's widely considered to be one of, if not the strongest Monster Type in all of Yu-Gi-Oh
Better yet, since the backside triggers on the end step, you'll start generating value immediately, which gives it a leg up on some other battles that flip into creatures and need to survive a turn to do anything
Give your deck a go against some friends or in casual duels, or even just shuffle it up and draw a practice starting hand, to see what works - and what doesnt - and then adjust as necessary
Destined Rivals is a highly sought-after set because the entire expansion focuses exclusively on Team Rocket, the popular trainers that exist within Team Rocket, and the Pokmon that make them such powerful opponents
Combined with a card like Spellseeker you can create some powerful combos
As long as Joel survives, of course