Historical Rules · 20 January 2017
Rule 108.2
Official source text from the 20 January 2017 Rules release
When a rule or text on a card refers to a “card,” it means only a Magic card. Most Magic games use only traditional Magic cards, which measure approximately 2.5 inches (6.3 cm) by 3.5 inches (8.8 cm). Certain formats also use nontraditional Magic cards, oversized cards that may have different backs. Tokens aren’t considered cards—even a card that represents a token isn’t considered a card for rules purposes.