Solo class with the most downtime?

[indiscriminate_hater]

Halfling warrior with no fungi who never sits

[Atmas]

The description of your post hands down indicates a wizard.

Necros at some point don't ever really have downtime and warriors are just nearly completely ineffective at soloing in higher levels. If you a play a warrior, fungi or not, you will eventually hit a point where your rate of leveling while solo is abysmal.

[Valura]

dont go wizard