Kanda has been with the hobby since Sword & Shield Brilliant Stars , making them a relative newcomer
Coloring your Pokmon based on its type helps other people know what kind it is (like how Pikachu is yellow, and so you know its electric), but feel free to break the rulesplenty of official Pokmon do
The decklist includes a ton of cards with enter the battlefield triggers as well as ones with powerful passive and triggered abilities
Table of Contents show What Are Token Commanders in MTG
But thats indeed the list I usually use for shiny Pokmon cards as well
Teaching games - small streamlined decks tend to focus on one strategy, and use a few specific tactics, mechanics, to get there - a larger and more unfocused deck can be used to teach new players broader groups of mechanics and the way they interact better than competitive decks can