A few tips for getting started with deck building
Decklists The Thunder Dragon decklist is relatively standardized at this point
Fire Nation Salvagers Fire Nation Salvagers mixes a bunch of different themes together, but it has some promising potential
You can use cards like these to maximize these tokens sticking around: Cadric, Soul Kindler Kiki-Jiki, Mirror Breaker Feldon of the Third Path 4 Neriv, Heart Of The Storm Dont Be Hasty A cheaper Dragon with a powerful effect, Neriv, Heart of the Storm is a Mardu commander that has a strong haste-themed effect
Your strategy should line up like this: Your opponent has used half of their deck to summon and customize their monsters
Among the hardest to find of these are the multiple "Eeveelutions", and one such difficult card to find (of the psychic type, Espeon) sold in 2021 for an impressive $22,100