For each 3 Refining level s of Boltijin:
Increases damage Earth Spike a 10%.
Increases damage Heaven's Drive a 7%.
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For each 3 Refining level s of Psychic Spear Rod:
Increases damage Psychic Wave a 7%.
Decreases Varetyr Spear skill cooldown a 0.2 seconds.
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For each 3 Refining level s of Dust Grave:
Increases damage Earth Grave a 7%.
Increases damage Daymond Dust a 5%.