June 16, 2023 · The Lord of the Rings: Tales of Middle-earth
A modal double-faced card’s back face is marked by a back-face symbol in its upper left corner. The back-face symbol is two white triangles inside a sideways teardrop.
July 23, 2021 · Adventures in the Forgotten Realms
rule 712.3b not present in this release
April 22, 2021 · Strixhaven
While the two cards of a meld pair are on the battlefield as a melded permanent, the object represented by those cards has only the characteristics of the combined back face, and its mana value is the sum of the mana values of its front faces. If a permanent is copying a melded permanent, the mana value of the copy is 0. See rule 202.3c.
July 22, 2016 · Eldritch Moon
While the two cards of a meld pair are on the battlefield as a melded permanent, the object represented by those cards has only the characteristics of the combined back face, and its converted mana cost is the sum of the converted mana costs of its front faces. If a permanent is copying a melded permanent, the converted mana cost of the copy is 0. See rule 202.3c.