This is my Noob build for Sura, its cheap and easy to use in BG
Equip
Top : Red Deadmau5 = Gemini card
Redux helm = Evil Snake Lord card
Mid : Damage Wing or any wing = Gemini Card
Low : Anti Silence and freeze aura = Orc Hero / Glorified Orc Hero
Armor : 2 Lord's Tunic or Valkyrie Armor = Tao Gunka card and Ghostring ( for defense against sacrifice skill )
Shield : 2 Valk Shield = Thara Frog for melee class and Horn card for range class
Orleans server = Golden Thief Bug for magic user
Weapon : Apocalypse or any hero rank mace = 2 Turtle General, 2 Hydra
Spike (2) = Hydra card
Garment : Aesprika
Shoes : Sleipnier = Amon Ra or Boss Egnigem
Acc : Medal of honor 2x = Aligator Card
Stat
Str = 500 or divisible by 10
Agi = put this after dex and until 195 aspd, divisible by 10
Vit = Until 45 soft def, equip spike and adjust
Dex = 150 divisible by 10
Int = Rest
Luk = dont need
2 Gemini card make you immune to Stone curse and Sleep status and Evil snake lord make u immune to Curse status that slow you down, useful against range class.
Use spike to asura squishy class, and your main asura weapon for tanky class, always on spike when you move around and switch when you about to asura, switching is the key.
This build is quite tanky and deal good damage, but you will need alot of ygg berry.