Archer is dead on 2 nukes, no more. Fighter 3-4. If a fighter comes to you in melee range, you will have enough time to cast 6 nukes with your casting speed, meaning you will kill him without even running back. So, in, conclusion you say that even when a mage can, kill, multiple targets, without even kitting or using any type of slow or debuff is fine and fighter does not need a "boost" (which is not even a real boost, you just make othell normal) against that. I do not even have to mention summoners who just run and let the pet kill you. If you think that it is going to be mass pvp, where you have to kite and run back and forth, fighters are in disadvantage.