SpreadingChorus, Eerlis (FR)

[AUTO]:When this unit is placed on (RC), look at the top seven cards of your deck, choose up to one Sound System card, discard it, and shuffle the deck.

[AUTO]:When this unit is retired from (RC), if you have a grade 3 or greater vanguard with "Artisaria" in its card name, call up to one Shadow Army token to a back row (RC).