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 :

• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Champion Cup!

  Ultimate prize for Champions.
• Folk Folding Fan
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Ritual Taiko
• S69 Skull Cloak

  Increases Max. HP by 4%. Restores HP by 4%. Increase attack damage by 6%.
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• 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.
• Black Metal Hammer
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Blue Pattern Skis
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Raijin Raijinco
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• Civet Cat Tail
• Firefox Tail
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.