if werewolf serum is given to proffesor x from gsx, and he attacks through a friendly character basing an opposing figure, can x use the blades on them through the friendly figure???
From the Final Word for Professor X
Can Professor X use In Contact with Cerebro to draw line of fire and count range with powers he can use, but doesn't possess, such as themed team PC or powers temporarily granted to him by Mikron O' Jeneus?
No. Professor X can only use ICwC with his powers, which are powers that he actually possesses.
So, the answer is no, since Nightshade is granting him the use of the BCF, not possession.