Hi!
I found a nice guide for those who can't make a choice what race he will play. Also, I think that even very strong players will analyse it and will make some new conclusions for themselves. As usual.

Dark Knight / Blade Knight / Blade Master:
Min dmg = str/6
Max dmg = str/4
Combo base = (str+agi+ene)/2
Speed = agi/15
Defense = agi/3
PvM defense rate = agi/3
PvM attack rate = lvl*5+agi*1.5+str/4
PvP defense rate = lvl*2+agi/2
PvP attack rate = lvl*3+agi*4.5
HP = 35+(lvl-1)*2+vit*3
Mana = 10+(lvl-1)/2+ene
Mana regen = mana/27.5
SD = (str+agi+vit+ene)*1.2+defense/2+(lvl*lvl)/30
AG = ene+vit*0.3+agi*0.2+str*0.15
AG regen = 2+AG/20
Skill % = 200+ene/10
Fortitude % = 12+vit/100+ene/20
Fenrir base min dmg = 45+(str*2+ene)/6+(agi+vit)/5
Fenrir base max dmg = 75+(str*2+ene)/6+(agi+vit)/5

Dark Wizard / Soul Master / Grand Master:
Min wiz dmg = ene/9
Max wiz dmg = ene/4
Speed = agi/10
Defense = agi/4
PvM defense rate = agi/3
PvM attack rate = lvl*5+agi*1.5+str/4
PvP defense rate = lvl*2+agi/4
PvP attack rate = lvl*3+agi*4
HP = 30+(lvl-1)+vit*2
Mana = (ene+lvl-1)*2
Mana regen = mana/27.5
SD = (str+agi+vit+ene)*1.2+defense/2+(lvl*lvl)/30
AG = (str+ene)*0.2+vit*0.3+agi*0.4
AG regen = 2+AG/33.3
Soul barrier % = 10+agi/50+ene/200
Nova max spell dmg = 1320+str/2
Fenrir base min dmg = 60+(str+agi)/5+vit/7+ene/3
Fenrir base max dmg = 90+(str+agi)/5+vit/7+ene/3

Fairy Elf / Muse Elf / High Elf:
Min dmg = (str+agi*2)/14
Max dmg = (str+agi*2)/8
Speed = agi/50
Defense = agi/10
PvM defense rate = agi/4
PvM attack rate = lvl*5+agi*1.5+str/4
PvP defense rate = lvl*2+agi/10
PvP attack rate = lvl*3+agi*0.6
HP = 40+(lvl-1)+vit*2
Mana = 6+(lvl+ene)*1.5
Mana regen = mana/27.5
SD = (str+agi+vit+ene)*1.2+defense/2+(lvl*lvl)/30
AG = (ene+agi)*0.2+(str+vit)*0.3
AG regen = 2+AG/33.33
Dmg buff = ene/7+3
Def buff = ene/8+2
Heal = ene/5+5

Magic Gladiator / Duel Master:
Min dmg = (str*2+ene)/12
Max dmg = (str*2+ene)/8
Min wiz dmg = ene/9
Max wiz dmg = ene/4
Speed = agi/15
Defense = agi/5
PvM defense rate = agi/3
PvM attack rate = lvl*5+agi*1.5+str/4
PvP defense rate = lvl*2+agi/4
PvP attack rate = lvl*3+agi*3.5
HP = 58+(lvl-1)+vit*2
Mana = 8+(lvl-1)+ene*2
Mana regen = mana/27.5
SD = (str+agi+vit+ene)*1.2+defense/2+(lvl*lvl)/30
AG = (ene+vit*2)*0.15+agi*0.25+str*0.2
AG regen = 1.9+AG/33

Dark Lord / Lord Emperor:
Min dmg = (str*2+ene)/14
Max dmg = (str*2+ene)/10
Speed = agi/10
Defense = agi/7
PvM defense rate = agi/7
PvM attack rate = (lvl*2+agi)*2.5+str/6+cmd/10
PvP defense rate = lvl*2+agi/2
PvP attack rate = lvl*3+agi*4
HP = 50+(lvl-1)*1.5+vit*2
Mana = 40+(lvl-1)+(ene-15)*1.5
Mana regen = mana/27.5
SD = (str+agi+vit+ene+cmd)*1.2+defense/2+(lvl*lvl)/30
AG = (ene+(str+cmd)*2)*0.15+(vit+agi*2)*0.1
AG regen = 1.9+AG/33
Skill % = 200+ene/20
Critical dmg = cmd/25+str/30
Fireburst bonus min dmg = 100+(str*2+ene)/50
Fireburst bonus max dmg = 150+(str*2+ene)/50
Horse bonus dmg = 100+horseLvl*10+lvl*2.5+str/10+cmd/5
Raven speed = 20+(ravenLvl*4)/5+cmd/50
Raven min dmg = 180+ravenLvl*15+cmd/8
Raven max dmg = 200+ravenLvl*15+cmd/4
Guild size = (lvl+cmd)/10

Short explanation:
str - Strength
agi - Agility
vit - Vitality
ene - Energy
cmd - Command
lvl - Level
horseLvl - Horse Level
ravenLvl - Raven Level

For those who doesn't understand it:
Use simple arithmetic rule - multiplication and division must be calculated before addition and subtraction. Exception - expressions in brackets must be calculated before expressions outside.

Thanks!