~Which one? Hammer or staff? Hammer.
~Should I go for Sprite set or Legacy set? Legacy.
~Skills to put into my 1~0 bar for ease of use and combo. Typical wolf skills, ape and the -hit rate debuff, bird and the bird heal, the root skill and the aoe dizziness.
~Talent combos to use: Scholar of Word for pvp when there's a lot of evade users; King of the Jungle when against a lot of magic users; Holy Fudge when you want to go glass cannon with 2h hammer; Trainer of Willpower when you need to be tanky.
~Suppose there's already a selection of a specific weapon(Hammer or staff), What weapon should I focus on? If you stick to 40 use 2 Blue Hammers or 1 Blue Hammer and Lv 28 Orange Stasis One; at 50 the yellow 1h 50 Hammer and the orange version; at 60 50 Yellow 1h Hammer with the orange version or the 58 Orange Hammer that gives 100% crit rate.
~Stats on the weapons, armor and accessories to consider. Vitality Stones, Agility or Strenght, depends on what form you focus more so Strenght/Agility = Wolf , Strenght/Vit = Bird and Ape.
~When I reach level 45, what mastery should I get? -Dmg Taken % and the Wolf Crit Rate IMO.
I advice you to focus on wolf since Bird and Ape Form before Mystic/Shaman aren't that great.