This term was first introduced via Problem-Solving Card Text in Legendary Collection 3: Yugi's World, in the updated card text of "Dark Necrofear".[Notes 1] It was then used in Abyss Rising, in the card text of the "Madolche" cards.
Cards considered to be in a particular player's possession are all of the following:
- cards on that player's side of the field
- cards in that player's hand, Main Deck, Extra Deck, or Graveyard.
- that player's banished cards
- cards in the middle of being Summoned to that player's side of the field
- cards attached as Xyz Materials to an Xyz Monster(s) that player controls.
- ↑ More recent reprints of "Dark Necrofear" no longer use "possession" as a term in their card texts, due to the activation conditions of "Dark Necrofear" having changed since then.
- ↑ Konami. Yu-Gi-Oh! Trading Card Game - Official Rulebook Version 9.1. pp. 49. http://yugioh.wikia.com/wiki/File:Rulebook_v9.1.pdf.