|This build aims to optimize use of Kana's native skills to make a strong enemy phase set or, with a little more investment, a viable mixed phase set.
Water Breath+ is Kana's native weapon and it has a pretty good niche. Because it is essential a Bracing Stance, it majorly increases Kana's survivability. In addition, having no cooldown penalty lets Kana run tow charge specials. Either a +Def refine or +Spd define would be best, whether or not you want to help bolster his player phase with speed or focus a bit more on enemy phase bulk with defense
Reposition is a standard, powerful movement tool that allows tanks to move units behind them, and then acting as a wall for them on the enemy phase, or just generally moving units around.
Moonbow is the best special for Kana. Because there is no cooldown penalty for Water Breath+ you can easily activate Moonbow every fight, allowing him to blow away squishier targets.
Fury 3 is quite good on Kana going player phase builds, as it increases all of him stats to let him make the speed thresholds necessary to acquire doubles, or even avoid getting hit by them.
Alternately, Kana's native Brazen Def/Res 3 is also fairly viable, though it makes his first combat fairly poor, which can be problematic.
Quick Riposte 2 is adequate for Kana to be battle ready. Kana, who has fairly good speed but not overwhelming amounts, to always double on return.
Alternately, one can run other B skills such as Guard 3 or a breaker to help stop Bold Fighter nonsense or give him a better player phase with breaker.
Fortify Dragons is the skill Kana naturally comes with and is quite powerful with other dargons. Alternately he can run any Hone/Spur/Drive to good effect, depending on what you want for your team.
Kana's seal choice really expands depending on which path you chose. If you run the more defensive set Close Def 3 is probably best. If you want to run a mixed phase Kana, then Speed +3 allows Kana to get to the required level to double the vast majority of enemies.
Lastly, if you're not running Quick Riposte 2 as a B skill, Quick Riposte 3 is the best seal to run, as not having a source of the skill greatly weakens his enemy phase capabilities.