No Grade:
Tattoo of Power: P.Atk +12%

D Grade:
Tattoo of Soul: Attack Speed +33%
Tattoo of Fire: Shield Def. +15% (Reflect damage)
Tattoo of Resolve: Speed +33

C Grade:
Tattoo of Bravery(Braze): Critical Rate +25%

B Grade:
Tattoo of Flame: M.Atk +65%
Tattoo of Avadon: Casting Speed +23%
Tatoo of Divine: Mental Aegis +3 (Resistance against sleep, etc.)
Tattoo of Pledge: P.Def +40%, Evasion +7 (Only on light armor)
Tattoo of Doom: P.Def +40% (Only on heavy armor)

A Grade:
Tattoo of Blood: Bleeding -40 (Resist Bleeding)
Tattoo of Absolute: HP +15% (Bless The Body)

Tattoo of the Ogre: +8% P.Atk and either -8% Atk. Spd or -8% P.Def 
Tattoo of the Ogre (Empowered): +12% P.Atk, -8% Atk. Spd and -8% P.Def 

Tattoo of the Monk: +8% Atk. Spd and either -8% P.Atk or -8% P.Def 
Tattoo of the Monk (Empowered): +12% Atk. Spd, -8% P.Atk and -8% P.Def 

Tattoo of the Rabbit: +8% Running Spd and either -8% Accuracy or -8% Atk. Spd 
Tattoo of the Rabbit (Empowered): +12% Running Spd, -8% Accuracy and -8% Atk. Spd 

Tattoo of the Assassin: +8% Critical Rate and either -8% P.Atk or -8% Atk. Spd 
Tattoo of the Assassin (Empowered): +12% Critical Rate, -8% P.atk and -8% Atk. Spd 

Tattoo of the Giant: +8% HP and -8% MP 

Tattoo of the Scholar: +8% MP and -8% HP 

Tattoo of the Troll: +10% HP Regeneration and -10% MP Regeneration 

Tattoo of the Nymph: +10% MP Regeneration and -10% HP Regeneration 

Tattoo of the Golem: +8% P.Def and either -8% Atk. Spd or -8% Evasion 
Tattoo of the Golem (Empowered): +12% P.Def, -8% Atk. Spd and - 8% Evasion 

Tattoo of the Sniper: +8% Accuracy and either -8% P.Atk or -8% Evasion 
Tattoo of the Sniper (Empowered): +12% Accuracy, -8% P.Atk and -8% Evasion 

Tattoo of the Ghost: +8% Evasion and either -8% Accuracy or -8% P.Def 
Tattoo of the Ghost (Empowered): +12% Evasion, -8% Accuracy and -8% P.Def 

Tattoo of the Witch: +8% Casting Spd and either -8% M.Atk or -8% M.Def 
Tattoo of the Witch (Empowered): +12% Casting Spd, -8% M.Atk and -8% M.Def 

Tattoo of Magic Power: +8% M.Atk and either -8% Casting Spd or -8% M.Def 
Tattoo of Magic Power (Empowered): +12% M.Atk, -8% Casting Spd and -8% M.Def 

Tattoo of the Mirror: +8% M.Def and either -8% Casting Spd or -8% Evasion 
Tattoo of the Mirror (Empowered): +12% M.Def, -8% Casting Spd and -8% Evasion 

Tattoo of Fire: 8% Damage Reflection and either -8% P.Def or -8% M.Def 

Tattoo of Blood: +10% Resistance against Bleed and -10% Resistance against Terror 

Tattoo of the Dryad: +10% Resistance against Hold and -10% Resistance against Bleed 

Tattoo of the Undead: +10% Resistance against Sleep and -10% Resistance against Hold 

Tattoo of the Brave: +10% Resistance against Terror and -10% Resistance against Sleep