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 :

• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• S46 Holy Drum

  Reduce damage taken by 4%. Increase chance to restrict enemy for 1 turn by 20%. Targets with “Restriction” will not be able to use any skills.
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Scroll: Genbu
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• S71 Magic Clock

  Increases Max. CP by 10%. Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Scroll: Fire and Earth
• S10 Frostguard's Shield

  Shield of the valiant warrior Tundra. Increase agility by 2. Has 17% Chance to stun target when attack with weapon for 1 turn.
• Hidden Green Umbrella
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• Mini Scroll
• Sakura Rain Battle Umbrella
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Celestial Wood Raijinco
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• GM Phone

  GM Phone
• Scroll: Grassland
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Beast Mace