Increases damage of Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon by 10%.
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For each 4 Refine Levels:
Increases damage of Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon by additional 5%.
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Refine Level +9:
Increases damage of Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon by additional 10%.