Quote Originally Posted by Ranaku View Post
The game teaches you everything you have to know.
No, it does a pretty notoriously bad job of that.

Quote Originally Posted by Ranaku View Post
Heck how do you think the people who made the guides found out?
Through actual testing, which generally included the use of parsers, else we'd never be able to catch such blatant errors as a skill potency being outright wrong (not as listed on its tooltip), let alone know what percentage of player potency "pet potency" would be worth at a given level.