Driven by Shadow
Revised Core Set #92 (x1)
Treachery

When Revealed: Each enemy and each location currently in the staging area gets +1 Threat until the end of the phase. If there are no cards in the staging area, Driven by Shadow gains Surge.

Shadow: Choose and discard 1 attachment from the defending character. (If this attack is undefended, discard all attachments you control.)