Christmas Bag

Christmas Bag's Informations in game :
Description :Reduce damage taken by 10.
Category : Back Items
Skill's Type :
Gold : 0
Token : 100
Prestige : 0
PvP Point : 0
Merit : 0
Damage : 0
Level : 5
Cooldown : -1
Cakra Point : 0
Require Emblem : ~~YES~~
Sell Able : YES
Learn in Academy : ~~YES~~
Rarity : 3

Tag Effect
Effect	Duration	Amount	Chance
reduce_damage_bonus	0	10	100

You might as well compare with these Back Items so you can decide which Back Items you're gonna use for ninja Saga Pvp or in Hunting House for easier killing the boss or your opponent in ninja saga PvP
These Back Items might have better effect . Here we go :

Extra Large Presents Bag
A large present bag, but nobody knows what it contains.

S70 Magical Cobweb
Restores CP by 3%. 30% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.

Toxic Spider Web
10% chance to apply Restriction on enemies who attacks the user for 1 turn.
5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%

Celestial Wood Raijinco

Scroll: Terminated Rock

Shadow Umbrella

Carrot Launcher
Increase agility by 1. (Easter 2011 Limited Edition)

Sakura Fan
Recover 20 HP and 150 CP at the start of every turn.

Patriot Aegis
A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.

Balloon Rabbit Doll
Has 8% chance to convert damage taken to HP positively.

S7 Gorgeous Butterfly
Increase agility by 2. Recover 20% extra CP when charge.

Flame Blade Raijinco

Butterfly Wings

S2 Demons erosion
Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.

Colorful Moai Egg
Reduce damage taken by 100 and recover 10% extra CP when charge.

Call of the Angel
Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.

Shinobi Curse Battle Umbrella

Scroll: Taiin

Victorious Crown
Increases accuracy by 4% and recover HP by 3%. Has 13% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.