The core card forest spider has a Shadow effect that reads: "Defending player must choose and discard 1 attachment he controls."
The rule book defines "control" as: "A player controls all cards that he owns"
So, based on this, does this mean that if I'm hit with the Shadow effect from a forest spider, I can search through my deck and discard any attachment I want? Cause technically I control my entire deck . . . Or do I need to discard from my hand/cards in play?
Thanks!