Card Rulings:Blackwing - Kochi the Daybreak

Blackwing &#8211; Kochi the Daybreak  &#8220;If this card was Special Summoned, this card cannot be used as a Synchro Material Monster&#8221; is not a monster effect. Cannot be negated by effects such as Skill Drain and Blackwing &#8211; Shura the Blue Flame, etc.

As long as Blackwing &#8211; Kochi the Daybreak is not Special Summoned itself, it can be used as a Synchro Material in the turn when other monster(s) are Special Summoned.  Source: http://yugioh.faq.konami.jp/EokpControl?&amp;lang=en&amp;tid=58550&amp;event=FE0006"