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 :

• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Mini Scroll
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• Fire Symbol Guitar
• Mech of Wing

  Reduce damage taken by 10%.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• Hidden Green Umbrella
• Basic Jounin Battle Gear
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• 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.
• Roasted Turkey

  Restore 20 HP every turn.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Love Missile

  Additional 60 HP damage upon all attack.
• Blue Wolf Tail
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• Dark Plate Twin Blades
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• S83 Four Wings

  Increase dodge rate by 8%.
• Santa Gift Bag

  Reduce damage taken by 30.