Types like Sea Serpent and Plant struggle to find competitive success apart from a few dedicated competitive strategies, while types like Fiend and Spellcaster have had several popular archetypes throughout Yu-Gi-Oh
When it is Special Summoned by this effect, inflict 800 damage to your opponent.
Both of these sealed products are desirable collectables and investments, since either one of them can contain any of the 295 Alpha cards, even a Black Lotus
You cant really go wrong, as such, but consider ease of casting and the density of power three or four creatures, and then density of token production
This gives you infinite enters and leaves the battlefield triggers and infinite tapped tokens, and I'll let you figure out how to win from there
Find sellers that are looking to get rid of their Pokmon cards and are offering a good price