i dont know if this idea has been tossed around before but how about once a minute for 3-5 seconds a lock have the ability to phase shift like imp, makes invulnerable but also cant get healed, removes all debuffs and can move at full speed but any casting ends it early. this isnt long enuf that arena players have to change focus but would prevent a lock from getting killed in the first 10 seconds. he could now live 15 seconds. plus some players abilities would be on CD now and give locks a chance. this would remove stuns as well. or the debuffs dont go away but dont affect the lock during the duration of the phase shift. so dots and bleeds wouldnt dmg the lock for the shift but would return once out of shift, even a stun would.