For each 3 Refining level s of Jack the Knife:
Increases damage Back Stab a 10%.
Increases damage Fatal Menace a 5%.
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For each 3 Refining level s of Platinum Dagger:
increases Fire, Water, Wind and Earth elemental magic damage a 5%.
increases attack speed (Aspd +2%).
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For each 3 Refining level s of Rapid Fire:
Increases damage Triangle Shot a 7%.
increases long ranged physical damage 2%.