User blog comment:SunYunBun/Craft Essence Debate/@comment-11658422-20160408045704/@comment-27107874-20160408212427

Not trying to brag but I've got an elaborate CE collection as well..... I'd much rather have more servants. The best CE is worth but a fracture of it's true potential if equipped to a weak servant. Having a 5 star with no CE beats a 3 star with a 5 star CE any time of the day.... (maybe not Cu but he's a 3,5 star servant anyways)

Using the "right" one always depends on your team composition, the particular servants in question and the mission/quest your about to tackle. Of course there are certain servants that generally benefit from a certain CE, but you shouldn't get complacent. Never think of a certain setup as perfect. Especially with that library at your disposal. Thinking back to what uncle Ben told us "with great power comes great responsibility". Always try to push for the maximum effect! "Just do it! Don't let your dreams be dreams!"