how do you use powers?

[Rain]

also which of them are the best.

[O.T.T Pro]

Find the thaumaturgy spell tree key, drag to assign them to the hot bar, press hotbar key and use them via the numbers on your keyboard. They're all really situational, but helpful. Most of them are cast on others. The only ones useful in every situation is "Mind Sense" and "Spirit Form". They let you scout ahead and place spells on enemies without them seeing you.

[Rain]

Originally posted by O.T.T Pro:

Find the thaumaturgy spell tree key, drag to assign them to the hot bar, press hotbar key and use them via the numbers on your keyboard. They're all really situational, but helpful. Most of them are cast on others. The only ones useful in every situation is "Mind Sense" and "Spirit Form". They let you scout ahead and place spells on enemies without them seeing you.

Thanks!