This Page is about the realm of the card if you are looking for information on the Realm button on the player profile pages refer to Envisioned Realm page.
Each and every card in the game is part of one of the 3 Realms: Chaos, Genesis or Justice.
When you first started out in the game you chose one of the realms as your starting realm and you were given cards that correspond to that realm, this in no way restricts you from using cards of a different realm, and there is no special bonus applied to cards that are the same realm as your chosen starting realm, it is only used to determine your starting card deck. If you click on any of the 3 Realm links above you will be taken to a page with all the cards listed from that realm.