Vampire Nighthawk [Explorers of Ixalan] Blue and you can only activate

and you can only activate the effect of "Cynet Codec" once per Chain

Set: Legendary Collection 4: Joey's World Card type: Effect Monster Rarity: Common Attack: 1000 Defense: 1000 Once per turn: You can make this card's ATK become double its original ATK

when this Defense Position card on the field is changed to face-up Attack Position: You can Special Summon 1 "Nordic Beast" monster from your Deck in Defense Position

Set: Nemesis Type: Legendary Artifact Rarity: Rare Cost: {5} {2}: Target creature gains flying until end of turn

Vampire Nighthawk [Explorers of Ixalan] Blue and you can only activateSet: Explorers of Ixalan Type: Creature Vampire Shaman Rarity: Uncommon Cost: {1}{B}{B} Flying, deathtouch, lifelink