"They're a novelty. One for each Legacy, it seems." He answers passively. For the moment he is more interested in doing something fun and the game described seems to be a shade of fun.

"Other such identical decks exist over there." Emet-Selch nods to the location where he retrieved the deck of cards from. "We need not hinder ourselves to this deck alone. We can build the ideal one using several decks if we needs do so." Surely they could tailor one to get what they required?