Emry, Lurker of the Loch (Retro Frame) #81

This spell costs 1 less to cast for each artifact you control. When Emry, Lurker of the Loch enters the battlefield, put the top four cards of your library into your graveyard. T: Choose target artifact card in your graveyard. You may cast that card this turn. (You still pay its costs. Timing rules still apply.)