Increases Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon damage by 10%.
Increases Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon damage by additional 5% per 4 refine rate.
If refine rate is 9 or higher, increases Red Flame Cannon, Cold Blooded Cannon, Thundering Cannon, Golden Dragon Cannon and Darkening Cannon damage by additional 10%.