It's why I specifically didn't mention automation magic!
There is a *trick* to cap auto magic without doing anything. So technically takes 0 time. But I won't be describing.
TBH endgame is the exact same thing as leveling. Engage > hit control 1 > engage > hit control 1 > engage > hit control 1.
If mage; skip engage > control 1 > afk > control 1