Purity

Purity refers to the number of faction commanders that a deck must have to allow the addition of that faction's card to your deck or as a Commander. Factionless cards do not require purity to be put into a deck, nor do they provide purity as a Commander, when adding faction cards to a deck. Purity is represented by the faction emblems on the card (one, two or three) and also represented by the squares next to the cards on the Collection screen. Adding a faction commander will always grant exactly 1 purity of that faction.

Cards by purity

 * Purity 1 cards
 * Purity 2 cards
 * Purity 3 cards
 * Dual purity cards