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 :

• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• Merlins Magical book

  Increases attack damage 5%
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Scroll: Fire and Earth
• 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.
• Santa Gift Bag

  Reduce damage taken by 30.
• Super Rabbit Doll

  Increase damage by 9%.
• 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.
• 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%.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• Mini Goldfish
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• Scroll: Taiin
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Falcon
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Wine Gourd
• Hanagara Dama

  Increase max. CP by 6%
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• White Metal Hammer