I don't even recall that much...

They did once when Tribe was first banned and Dark Hole came back. Kevin said that if he were a player, he'd prefer the entire field be cleared than my side, especially if running a type-based deck.

I guess it could depend on what you discard...Sinister's banning hurt its use as well as restricting Night Assailant...Night Assailant would be evil though....since you'd get back 2 monsters..