Osiris is probably the most powerful Warlock, assuming he can use his Reflections outside of the Infinite Forest.[spoiler]However, I think Ikora is a “better” Warlock -she can lead -has intelligence on more than one enemy race and pays attention to more immediate threats -doesn’t try to selfishly bring back her friends by -blam!-ing with time, something that pretty much everyone can universally agree is a bad idea, by building a device on Mercury to travel within different points of different timelines -Probably wouldn’t leave the device (after failing to save said friend) in a position where the Red Legion could get in, try to find a way to win the Red War, and completely break time on Mercury -usually doesn’t make messes for the main character to clean up for them on a constant basis [/spoiler][spoiler]Like seriously Osiris what the -blam!- I can see why he was exiled now because holy -blam!-[/spoiler]