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 :

• Snowflake

  3% chance to freeze enemy who attack user (1 turn). (Frozen target cannot move but damage taken is reduced by 80%.)
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Sakura Rain Battle Umbrella
• Book of Slate

  Decreases Max. HP by 1% and Increase Max. CP by 10%. Increase 3% purify chance.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Folding Paper Fan
• Sealed Wood

  A back item which lost the original effectiveness.
• S51 Enchanted Winged Carapace

  Increases accuracy by 3%. Recover 4% HP at the start of every turn.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• Red Shell
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Drum: Ako
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• Mech of Wing

  Reduce damage taken by 10%.
• Thorn hammer
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Wine Gourd
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Ice Cystal Raijinco
• Scroll: Kochin
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.