Advanced format ruling
Blackwing - Silverwind the Ascendant
Card effect (current official text)1 "Blackwing" Tuner + 2 or more non-Tuner monsters
When this card is Synchro Summoned: You can target up to 2 face-up monsters on the field with DEF lower than this card's ATK; destroy those targets. You cannot conduct your Battle Phase the turn you activate this effect. During each of your opponent's turns, the first "Blackwing" monster you control that would be destroyed by battle, is not destroyed.
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.