Air raid at 1 for utility, but you may level Dungeon Fighter gold it higher if you really need to move on the y axis. We hear 3 is good enough for moving in PvE, but do not quote on this. Mach kick at 1 or 5 for triple clutch if you feel you can put its push into good use. If you need its stun that bad, you are doing something wrong.
And lastly, we heard one ranger maxed this out for damage, but most rangers like us do not really touch on this much. There are virtually no monsters smart enough to know how to counter a ranger abusing aerial fire, and it does damage similar to moving shot when at least level 8. It is harder aiming with aerial fire no doubt however.
Non-class skills should not be focused on for damage, but just get 1 BBQ for utility, if you think it will help. We got silver bullet for a little extra damage when we buff up, but it's our preference.
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