yugioh the infinite forbidden booster box Yu-Gi-Oh! Official Card Game Duel responsibly! Infinite Forbidden Booster Pack Display

The earliest that you can activate Sundial of the Infinite's ability is during your upkeep step, after abilities that trigger "at the beginning of your upkeep" have been put onto the stack but before they resolve

It's fine if a card can double its own counters, but they have to be able to double something else to make this list

Plus you have all the weird cards from The List that can pop up

The sideboard is also where you put your mighty companion cards like Lurrus of the Dream-Den or Yorion, Sky Nomad

Moltres & Zapdos & Articuno TAG TEAM GX (SM 210) TAG TEAM cards almost always have an impressive art style and this piece is no different