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 :

• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Swordfish
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Writing Brush
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Super Rabbit Doll

  Increase damage by 9%.
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• 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%.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Christmas Bag

  Reduce damage taken by 10.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Shadow Twin Blades
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• Scroll: Kochin
• Gunbai: Gyoji
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Scroll: Terminated Rock
• Native Drum

  5% chance to convert damage taken to HP positively.
• S83 Four Wings

  Increase dodge rate by 8%.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.