User talk:Eye-of-God

Rulings "once per turn" Please Help
I know this might be a silly question or I just might be oblivious to the ruling.

But recently I was duling my friend and he says that he can activate a once per turn effect before or in between the effect of a trap card which destroys that monster.

In this case he summoned Red Eyes Darkness Metal Dragon and I use Torrential Tribute and he says that he can somehow chain his effect upon his summoning to have him special summon a dragon. So the end result is that I destroyed REDMD and he summons Blue Eyes White Dragon can anyone tell me at all if this is possible or not? Thanks for your help.