Crystal affixes values are 3x of the same Epic affix. except for +500 HP/MP on Hit, which are only 2x Epic affix values.
+15% Attack Speed Epic
+45% Attack Speed Crystal
decide which 6 Items you want for your build.
decide which 6 Crystal affixes you want on your build.
decide which Set, Legend, Mythic, & Epic affixes you want on your build.
decide which Mythstones you want on your build.
decide which 6 Epic affixes you want on your Epic Pet, or which 5 Epic affixes you want on your Legend Pet.
with the Pet, there are 42 spaces for affixes. it would be best write down all the affixes you want, and then mark down which item you want them on. if you want affixes on your build that can’t be rolled with Crystals, look in the Codex > LegendEx to find the combination of Items that have the unrollable affixes that fit best in the build you want. (don’t forget, check Items of other Classes, Jasper Crystal is your friend)
there are videos & threads/posts, but it might take a lot of searching to find them.
hope this helps a little.