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 :

• Swordfish
• Shadow Twin Blades
• Scroll: Genbu
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Father's Heart

  Reduce damage taken by 6%.
• 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.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• Santa Gift Bag

  Reduce damage taken by 30.
• Seal Nightmare Wing

  Ignore 4% targets dodge.
• Purple Mixing Yellow Umbrella
• Ichimoku Gourd
• Spiked Blade

  Increases dodge and critical chance by 4%. Recovers 70 HP each turn.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Mirror of Shamisen
• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Super Rabbit Doll

  Increase damage by 9%.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• S2 Demons erosion

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