Card Rules: Rulings powered by The Netrep API. [Re: Serial Spell] You cannot level up 'Horus the Black Flame Dragon' from 4 to 8 with just 'Level Up!' and 'Serial Spell'. Because you would send 'LV4' to the Graveyard for 'Level Up!' , but even if you copy it with 'Serial Spell' the first 'Level Up!' hasn't resolved so 'LV6' isn't on the field to send to the Graveyard as a cost for the copy of 'Level Up!' If you have 'Horus the Black Flame Dragon LV4' and 'Armed Dragon LV3' on the field and send one of them to the Graveyard with 'Level Up!' you cannot use 'Serial Spell' to Level Up the other monster since there was no monster sent to the Graveyard as a cost for 'Serial Spell' and 'Serial Spell' would have no point of reference to resolve its effect. Passcode: 980973 Set: Structure Deck ATK/DEF: 1200/900 Card Number: SD1-EN005 Monster Type: Dragon Rarity: Common Attribute: Wind Card Text: During your Standby Phase send this face-up card to the Graveyard to Special Summon 1 'Armed Dragon LV5' from your hand or Deck. Level: 3 Card Type: Effect Monster Name: Armed Dragon LV3 Edition: 1st