We could double the mana costs for other arrows (as Dsawemd suggested) and make the mobility skill level 50 or so.
ICEARROW PLUS BARRAGE OR EVEN JUST ICEARROW. Rangers dont need a mobility skill to replace FireArrow.
We need something similiar to FireArrow, which does like 49 dmg in fire ticks (ignoring armor as fire does?) in addition to our arrow damage. Also, I want to make us less likely to use IceArrow, but PoisonArrow I do not want to change much, I would like to see us utilize our full bag of tricks more instead of finding greater success spamming IceArrow
edit: <3 to Awsumguy, but you said you haven't played a Ranger when you suggested the mobility skill, and you seem to need a
little brushing up on which class can do what, and how well they can do it. The wiki is good, in-game experience is better. <3