Quote:
Originally Posted by sunsengnim
well i ignored that one since he was fused with great reds energy 
which meant it wasn't entirely with his own power so it would fall out the window since we're trying to ascertain its power. |
Exacly pretty apple pie!!!
We are going to take in consideration the 2 times Issei use it on his own.
When against Shalba the first time and in the coming volume 17.
It has to be very, VERY, powerful to prohibit its use.
So at the very least it has to be in god killing level.