This card does nothing to Skull Servants or Wights that are on the board or in the Graveyard, though, so it's best to use Allure of Darkness or similar cards to justify more than a single copy in a Deck
The legendary bird looks like it came from a kindergarten craft project, and it's that contrast that makes it striking and unintentionally hilarious
Damage : Subtract the ATK points of the attacking monster from the DEF points of the opponent's monster
Basically, if a player manages to collect all five pieces of Exodia (the head, both arms, and both legs) in their hand, they automatically win the game
add 1 Level 4 DARK monster from your Deck to your hand
You could always play Black Lotus, but for a long time Time Vault wasn't just restricted