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 :

• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• Shadow Umbrella
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Sakon Three Blades
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Straw Hat

  Increase dodge rate by 3%.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• Turkey Tail
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Water Shark Skis
• Sakura Rain Battle Umbrella
• Thorn hammer
• Blue Shell
• Scroll: Tenku
• Flame Soul Electric Guitar
• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Musashi Twin Blades
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• S10 Frostguard's Shield

  Shield of the valiant warrior Tundra. Increase agility by 2. Has 17% Chance to stun target when attack with weapon for 1 turn.
• Seal Nightmare Wing

  Ignore 4% targets dodge.