Meteor Black Comet Dragon [GFTP-EN096] Ultra Rare SM104a You can only use this

You can only use this effect of "Evening Twilight Knight" once per turn

gain Life Points equal to that target's ATK

Set: Starstrike Blast Card type: Fusion/Effect Monster Rarity: Ultimate Rare Attack: 3500 Defense: 2800 1 "Gaia Knight

you can Normal Summon it to have it be treated as an Effect Monster with this effect

Meteor Black Comet Dragon [GFTP-EN096] Ultra Rare SM104a You can only use thisSet: Ghosts from the Past Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 3500 Defense: 2000 1 Level 7 "Red Eyes" monster + 1 Level 6 Dragon Type monster If this card is Fusion Summoned: You can send 1 "Red Eyes" monster from your hand or Deck to the Graveyard, and if you do, inflict damage to your opponent equal to half the original ATK of that monster. If this card is sent from the Monster Zone to the Graveyard: You can target 1 Normal