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 :

• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Sealing the soul barrel
• Wood Top
• Flame Soul Electric Guitar
• Scroll: Double Head
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.
• Businessman Luggage
• Heart Aura

  Hidden feelings emerges! Recovers 2% of the user's max HP and 100 HP every turn.
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• 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.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• S2 Ancient Bone Claw

  An ancient bone that emanates great power. Increases accuracy by 8%. Recovers 100 HP every turn.
• 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.
• Roasted Turkey

  Restore 20 HP every turn.
• Raccoon Tail
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Trident
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.