PS Kingdom Hearts 2 Sephiroth

[ZeroBlast]

Ok, so I was watching a youtube video on someone playing the sephiroth boss to see what he did to make the boss easier. I noticed that he had about 5 hp left and kept getting hit and didn't die! Is this some sort of ability!? Or is it the keyblade he was using!? Can someone please tell me!!!

 

[Duster]

He probably had the ability's "Second Chance" and "Once More" to try to troll people.Btw you can only get ability's from a keyblade in Kingdom Hearts Birth By Sleep and maybe Kingdom Hearts Re:coded.Keyblades in Kingdom Hearts 2 can only give you higher or Lower strength and/or Higher or Lower Magic or both higher or both lower.It depends on your Stats and the Keyblade