Historical Rules · 3 February 2023
Rule 712.1
Official source text from the 3 February 2023 Rules release
A double-faced card has a Magic card face on each side rather than a Magic card face on one side and a Magic card back on the other. There are two kinds of double-faced cards. Transforming double-faced cards include abilities on one or both of their faces that allow the card to either “transform” or “convert” (turn over to its other face) and/or allow the card to be cast or enter the battlefield “transformed” or “converted” (with its back face up). Modal double-faced cards have two faces that are independent from one another, and they can’t transform or convert.