Nighthawk Scavenger's power is equal to 1 plus the number of card types among cards in your opponents' graveyards.
3-of in Challenger Decks 2021
Dies to bolt and no haste thats really a shame.
Because the dreaded "Vampire Nighthawk" was too weak for WotC, they powered it up "Tarmogoyf"-style.
Dies to Bolt.
I really don't like this design! Super miserable to play against if you just happen to have a lot cards in your graveyard. And miserable to play with if opponent happens to have a "Lightning Bolt". Miserable gameplay!
Vampires are already pretty strong, they don't need further pushes.