Wow i just checked it in the armory, i remember this helmet from the taken king ttailers ,that perk could either be really good or a bit annoying, coming from a blinker i feel that the blink distance is not bad at least for pvp and the BLINK cooldown would have to be very fast to even make it an exotic perk and to compensate for that .07 second nerf ,but if its too fast people will call it op cause u'll have warlocks teleporting nonstop annoying the crap out of you . Maybe triple blink would b a better perk