Forum:Remove ?

i have some question THX for answer me

-If i use Imperial Iron Wall but next turn my opponent use marco comos any card is sent to graveyard will remove from play or not? -If marco comos is on the filed Effect card that send to graveyard to active like Tri-Blaze Accelerator is active or not? -If i attack DD lady when it is facedown my card will remove or not? THX for answer me!