Nahiri, Forged in Fury - [Foil, Showcase] March of the Machine: The Aftermath (MAT) Booster Pack Activated abilities of sources with

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities

) As Blood Crypt enters the battlefield

and then burned down his laboratory

creatures you control get +X/+X and gain haste until end of turn

Nahiri, Forged in Fury - [Foil, Showcase] March of the Machine: The Aftermath (MAT) Booster Pack Activated abilities of sources withAffinity for Equipment (This spell costs {1} less to cast for each Equipment you control.) Whenever an equipped creature you control attacks, exile the top card of your library. You may play that card this turn. You may cast Equipment spells this way without paying their mana costs.