Bard charm and mez break more frequently than ench variants. Bard charm almost never casts for some reason. Something is broken with charm on Bard and I shelved the class because of it.
Medallions, coin nerf and lack of camps drove me off as well, that was just too much friction. I didn't mind the difficult economy but the coin nerf just made it more stressful than fun.
Correct, they don't but youd only have to worry about that with a bard in the group. Then id let them apply it and secondary haste while you pump damage.
There is some secondary mana regens that stack, unsure if the pet one is a secondary. The point being one mana regen is usually plenty. Double or tripling your damage group wide is hard to ignore.