Speaking of special stamps, this prerelease Tinkaton has two of them one noting it is from a prerelease kit and the other with elusive STAFF stamp
Volcanion's second move isn't half bad easy, as if Flare Starter is used to the best of its ability, it will do a powerful 110 damage
We'll also count cards that interact with spells on the stack, and there will be a focus on Commander and Cube
If you're unfamiliar with the general division between categories of Pokmon and categories of Trainers in a deck, take a look at a few decks in a format you're familiar with (especially if that format is similar to the custom format you're building for), and group the cards in the list using the same aforementioned eight categories I detailed for Trainers and Pokmon
Marshal is large and evasive enough that your opponents wont want you keeping it around, but if they do manage to remove it, you could end up spreading its power across multiple creatures
Reckoner Bankbuster This Standard powerhouse is a 2-drop 4/4 crew three that arrives with three charge counters