Arcane Archer enhancements

(info on enhancement tree here)

Tier One
Requires Ranger Level 1

Tier Two
Requires 5 APs spent in tree, Ranger level 2

Tier Three
Requires 10 APs spent in tree, Ranger level 3

Tier Four
Requires 20 APs spent in tree, Ranger level 4

Tier Five
Requires 40 APs spent in tree, Ranger level 5