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 :

• Gunbai: Gyoji
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Purple Dragon umbrella
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• 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%.
• Dragon Crucifix Spear
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Fire Symbol Guitar
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• Dark World Hammer
• Sanmoku Gourd

  Reduce damage taken by 65.
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Snowflake

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

  Increase 3% damage and increase healing power of scrolls by 10%.
• Green Koi
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• Blue Pattern Skis
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.