Advanced format ruling
Blackwing - Blizzard the Far North
Card effect (current official text)Cannot be Special Summoned. When this card is Normal Summoned: You can target 1 Level 4 or lower "Blackwing" monster in your Graveyard; Special Summon that target in Defense Position.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.