User blog comment:RayShepp654/How to defeat the Reapers Theories/@comment-1715766-20101030055646

It didn't take "two whole games just to kill one [reaper]." We didn't even realize that Sovereign was actually a Reaper until about halfway through ME1, and it only took the battle at the Citadel to kill him. In the second one we didn't even kill a Reaper, so I don't know what you mean.