((i just feel like adding in passive skills...))

Name: Kyoukan Adauchi (Assassin Retaliation)
Art: Zanjutsu
Description: A passive ability allowed by his zanpakutou. Following an Assassin's natural knack to be able to adapt to an opponent if unable to deliver fatal blows - hoping to finish off his opponent as soon as possible, the user gains 1 attack bonus every 6 failed attacks until the end of battle. If any attack hits before the counter hits 6, the counter is reset and the user must miss another 6 attacks before he gains another 1 attack bonus.

Name: Improve Dodge
Art: Zanjutsu
Description: A passive ability allowed by his zanpakutou and the user's own desperate desire to survive. Each time his HP is knocked down to 50% or less of its current state, he gains some dodge bonus until that HP is recovered or he is rendered to 0 HP. The Dodge bonus given depends on level and is cumulative<-(this can be taken out, but without it, this skill just seems weak...).

Levels 1-5:
+1 for 50% gone(50% max HP)
+2 for 50% of that(25% max HP)
+0 the rest of HP
Levels 6-10:
+1 (50% max HP)
+2 (25% max HP)
+3 (12% max HP)
+0 rest
Levels 11-15:
+1 (50% max HP)
+2 (25% max HP)
+3 12% max HP)
+1 (6% max HP)
+0 for rest
Levels 16-25:
+1 (50% max HP)
+2 (25% max HP)
+3 (12% max HP)
+2 (6% max HP)
+1 (3% max HP)
+0 for rest
Levels 26+:
+1 (50% max HP)
+2 (25% max HP)
+3 (12% max HP)
+3 (6% max HP)
+2 (3% max HP)
+1 (1% max HP)

If a single attack knocks the user down to a level skipping the one before it, the bonus from that skipped level will be skipped and not applied. Only current level is applied.
Example:
Level 10 formula
40hp>32hp>24hp>20hp>10hp>4hp>0hp
+0....>+0....>+0...>+1....>+2....>+3..>dead
(total of 6 dodge bonus added before defeat)

40hp>21hp>10hp>6hp>0hp
+0...>+0...>+2...>+0....>dead
(total of 2 dodge bonus added before defeat)