Lvl 35 Earth/Empath Troller here,
I Run without Stamina, have Hasten and hit that mostly after Thoose Stamina Aura.
But... i often get Invited to play with many lvl40+ as an Sidekick (not much Earth Trollers around, and many get addicted to them

)
and when it gets hot in the Missions it happens sometimes that i have nearly no Stamnia left, Okay mostly its an sighn that i have to heal to much and some one out of the Team dont do his Job Correct.
So Finaly.. if all went well you absolute dont need it, if not *cough**cough*
Greetings Braddack