A. Accuracy Rings and Soul Gems
All builds will benefit greatly with the Blood Bath skill lv. 10 (Reduces maximum HP and current HP by 16% to increase accuracy by 200% for 10 minutes) and +50% accuracy rings. Blood Bath easily solves the low accuracy problem. The +50% accuracy rings (can be used at Lv. 77?) are not a necessity, but it helps a lot in PVP at high levels, when you start to miss Archers and Blademasters most of the time.
A note on the +50% accuracy rings (aka LingYun rings): LingYuns are almost worthless if the base accuracy of a Barbarian isn't at least moderately high. LingYuns don't benefit from Blood Bath at all, which is their biggest downside. However, they become irreplaceable once your Barbarian's base accuracy is high. Also, you won't be able to get these rings until around lv 70; and even then, they are quite expensive and rare.
Also, if you get to lv 90, you can replace LingYun rings with HH 90 gold rings (each +30% accuracy and +2 % crit) for more damage. Works best with the Demon path because this path adds more critical hit rate to some skills and +100% more accuracy for Blood Bath.
It’s best to slot accuracy gems on your weapons and HP gems for your armors. +Vit and +Dex bonuses are nice too. Some may choose to use Physical/Magic defense gems, but HP gems will make you much more well-rounded, and Armageddon and Beast King's Inspiration are better with higher HP.
M.def jewelry to balance out the defenses when using heavy armor is also recommended. Hell, a top Werebeast/Barbarian player in PW-MY, has stated, in his view, that “heavy armor WB with magic defense jewelry is the best most balanced way to equip one's WB.”
B. Gear Requirements for Axes/Hammers and Heavy Armor:
lvl str dex excess
1 5 5 0
2 6 5 4
3 8 5 7
4 9 5 11
5 12 6 12
7 16 6 18
8 16 7 22
9 20 7 23
10 20 7 28
11 24 8 28
12 28 9 28
13 33 9 28
15 40 10 30
16 44 11 30
17 48 12 30
18 52 13 30
19 56 14 30
20 60 15 30
21 65 15 30
22 66 16 33
23 70 16 34
24 74 17 34
26 79 17 39
27 83 18 39
29 90 18 42
30 92 19 44
31 95 20 45
33 100 21 49
34 104 22 49
36 107 24 54
37 110 26 54
39 120 26 54
40 120 26 59
41 125 26 59
43 129 26 65
44 134 26 65
46 137 31 67
47 143 32 67
49 151 32 67
50 151 32 72
51 155 32 73
52 160 32 73
53 160 32 78
54 164 32 79
56 169 32 84
57 173 33 84
59 181 33 86
60 182 34 89
61 185 35 90
62 185 38 92
63 189 38 93
64 194 38 93
66 198 38 99
67 203 38 99
69 212 39 99
70 212 39 104
71 215 41 104
73 220 46 104
74 224 47 104
76 232 49 104
77 236 50 104
79 246 50 104
80 246 50 109
81 246 50 114
83 252 53 115
84 256 54 115
85 261 54 115
86 263 55 117
87 267 56 117
88 272 56 117
89 277 56 117
90 277 56 122
91 277 58 125
93 281 59 130
94 285 60 130
95 290 60 130
96 294 61 130
97 298 62 130
98 303 62 130
99 308 62 130
100 308 62 135
101 308 62 140
103 309 62 149
104 314 62 149
105 314 62 154