In addition to the normal rules regarding winning and losing the game, the Commander format has one other rule: a player who has been dealt 21 or more combat damage by the same commander over the course of the game loses the game
(9/29/2017) The card types that can appear on the discarded cards are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery
In MTG, it has been around a lot less time, since 2018, and Ive always thought it weird that a term for spycraft is used to talk about manipulating your own deck
For example, you can get ahead by casting expensive cards ahead of the curve, like Lumra, Bellow of the Woods, Wrenn and Seven, or Nissa, Ascended Animist
A closer look reveals a Ferris wheel in the background, which is a clever reference to one of N's first appearances in the Pokemon Black & White video games