The only time the characteristics of the back face really matter is when the permanent is on the battlefield with its back face up
The three main rules are that each player must have a deck of at least 60 cards, each deck can contain only two Ink types (Amber, Amethyst, Emerald, Ruby, Sapphire, and Steel), and each deck can have no more than four copies of a card in it
Her other variants, Clumsy Guest and Contented Wallflower, are both Emerald cards as well, making her a good option in any deck combination you choose
abililty requires the player to return two cards to their hand to successfully deploy her, which can be useful at times but is often a significant loss of board control
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