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 :

• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Wooden Hammer
• Death Wooden Coffin
• Leopard Cat Tail
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Rose Bouquet

  Recover CP by extra 5% per charge
• Scroll: Fire and Earth
• Snowflake

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

  Increase dodge rate by 3% and ignore target dodge by 3%.
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Aries Taiko

  A magical taiko used in celebrations during the Aries zodiac months. Recovers 50 HP every turn and reduces damage taken by 25.
• Blue Shell
• Red Koi
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Gold Wand

  Ignore 5% targets dodge.
• Businessman Luggage
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Flame Blade Raijinco
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Heian-kyo Shamisen
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)