You can find your local pre-release events, where youll get to open boosters, get hold of a special Spindown Life Counter, promo card and deck box, as well as participate in casual tournaments and potentially win more promo cards and booster packs, by checking out the official MTG event locator here
Yorion was banned in Modern on October 2022: The main reasons given on the official announcement were that on paper large decks are harder to shuffle triggers take a lot of time to manage and these seem to be more important than balance reasons alone
With (36) Core Set 2020 booster packs in every box, the possibilities are near endless
Ideally you should only be grading cards that are either personal to you or cost above $300
If you discard Wonder into your graveyard and control and Island, all of your creatures including your Orc Army will have flying
Hopefully this happens on Turn 3 with a one-drop ramp spell to start