While Professor X has Blind Spot on the board he is supposed to strengthen 4 friendly special tiles.
I have one Attack tile and two Protect tiles on the board currently and for the whole game he didn’t strength any of them at all. I reused Blind Spot and that still didn’t help.
Isn’t it when he makes matches? Is it possible you didn’t make any matches with him?
px has to tank his colors right? its like visions blue.
im still not sure about this, german trans is plain wrong - “bei übereinstimmung”, meaning EVERY match.
My understanding of the power is that yes, the matched tiles must be those with his symbol.
Yes, PX only buffs specials tiles when you match HIS tiles
You also need his 
in high enough level. I was wondering that same thing before.