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 :

• Scroll: Tenku
• 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.
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Folk Folding Fan
• Emblem backpack (Yellow)

  Double mission XP reward in level 1 to level 20.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Sanmoku Gourd

  Reduce damage taken by 65.
• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Super Rabbit Doll

  Increase damage by 9%.
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Gunbai: World Peace
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• S73 Smite Evil Shield

  Has 25% chance to absorb 2% HP of enemy who attack you. 8% chance to convert damage taken to HP positively.
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Dragon Crucifix Spear
• Dark Plate Twin Blades
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.