Hey! You! Yes, you!
Tim says he likes 3 normal classes, 1 voter, 1 point, and 1 donor in general for each team.
(Emphasise in general)
On Isengard, they only have 2 normal classes, so there is a possibility of an addition (I favour some sorta Dunlending Class). However, Torcher is also an addition that could be considered.
ALSO! Ents don't have any Donor class. Now, it is kinda hard to make a more OP ent. IDK what 'Great Ent' would have.