Hy nice post, i am a big fan of that game and its awsome to see someone who writes down explanation for all the mechanics.

As someone who also spends a lot of time in the game i also have some things to add to your explanation

• You dont need to talk to Sin to change your pantheon you can just press Y to open the Pantheon Page to change as long as you are in a town or the hideout. Fore example to Switch to Yugul for a reflect map

• Arakali is a Soul i use a lot, its the best major Soul for RF Builds and there is also a trick with the "more life recovery when you stoped taking damage over time" effect, you can aktivate that yourself by using immortal call with bloodrage

• Shakari is a very specific effect but also a pretty usefull one, i allways switch to it if i run a map with my LL Guardian that has "enemies poison on hit" and the difference was quite noticable.

Overall a very interessting artikel so i´m going to stop by from time to time :)