Apocalypse Demon [Hour of Devastation Prerelease Promos] SM17 Other artifact creatures you control

Other artifact creatures you control have flying

The question is

Set: Magic 2014 Type: Sorcery Rarity: Uncommon Cost: {2}{U} Look at the top three cards of your library

Suspend 7—{1}{B} (Rather than cast this card from your hand

Set: Strixhaven: School of Mages Type: Creature — Human Warlock Rarity: Uncommon Cost: {W}{W/B}{B} Flying

Apocalypse Demon [Hour of Devastation Prerelease Promos] SM17 Other artifact creatures you controlSet: Hour of Devastation Prerelease Promos Type: Creature Demon Rarity: Rare Cost: {4}{B}{B} Flying Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard. At the beginning of your upkeep, tap Apocalypse Demon unless you sacrifice another creature.