Should be released on or around November 11, 2022, the same day as the Silver Tempest set
Its in the nature of the game that a strategy cant be optimal for both players
These are not necessarily stronger than other rarities (although they can be) when it comes to the card game, but they are harder to come by when opening packs
Although we dont have any official statements on how dual Ink type cards will work, it seems safe to assume that they probably are cards that count for two different Inks
Possessing an Ability that could trade one card for two, an attack that swept the entire field, and a GX ability to turn the tables, Zoroark truly did it all
Packs with multiple rare cards do come up, but for the drop rate, take this update from Mark Rosewater