Great guide! However though, I'm thinking about the average crystal build. The thing is, Frostburn would only 22.5% Slow because of the other 2 Crystal items. The only time it might get stronger is with full Broken Myth stacks, which is very difficult to get. The Build that I usually do is Shatterglass, Frostburn, and Broken Myth. I only get sustain if it is a must because you lose so much power and slow by using that build at the beginning of the fight, am I right?

This build gives 32% slow in the beginning of the fight, and perhaps max slow near the end because of Broken Myth stacks.

Halcyon Chargers basically is a better version of Eve of Harvest except it has no Crystal Power and no sustain so the extra energy from Eve is also a bit useless?

So I suggest you put that in optional and probably put Shatterglass in optional or just add it to the build, because trust me, you wouldn't want your teammates to die just because you built wrongly, (it has happened to me before, and my lack of damage as Celeste or any CP carry ended up me losing the game)

Sorry if it took so long to read, I am just suggesting this because it has worked out better most of the time.

Great guide! It covers the basics of being a carry and has good builds. Many Weapon carries need energy especially early on. You could add it as an option because it's not essential for everyone. Keep up the good work!