Scrap Mastery

Oracle Text

Each player exiles all artifact cards from their graveyard, then sacrifices all artifacts they control, then puts all cards they exiled this way onto the battlefield.

Card Rulings

11/7/2014 “Exiled this way” refers to the exile instruction that’s part of Scrap Mastery’s effect. If the sacrificed artifacts are instead exiled because of a replacement effect, those cards won’t be put onto the battlefield.