That is pretty helpful. It even shows combos and such for people, to see what ninjas work well together. You don't have to be experimenting in the game for hours. As you said, it would be good translated into English.

We'll have that in the future.
Please be patient and pay attentions to our announcements.

its a great site. i use it too. just caution, that the standard attack combos are only if the probability triggers else its just one attack. make sure you get a balanced set of combos with atleast 2-3 partners.
also take each partner (making it a total of 3), to see how many combos you get incase that 4th partner dies. in that way, you can get the max and best out of the combos.