Emry, Lurker of the Loch (2019) [Secret Lair 30th Anniversary Countdown Kit] [Borderless]

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) When Emry enters, mill four cards. {T}: Choose target artifact card in your graveyard. You may cast that card this turn. (You still pay its costs. Timing rules still apply.)