I can see making a pretty solid team using this combination. A support character might slow you down but that doesn't mean it's not a good team, an example would be drainers. They are slow but efficient. Also choosing a spike character doesn't mean Kudoku is helpless, depending on who that character is.
Let's say you deal 20 with Sawada and maybe 25 or more with the other character. That deals around 50 dmg reducing one of your opponents to half, let's not forget kudoku can heal and gains charges. That is pretty solid. The team would not rely on his 90 dmg skill.
@Saif I'm still waiting on that request buddy.
Removed for ???