All in all I think it was a good idea, but they overdid it.

For the most part, it seems like the five attack types always do varying levels of damage on each individual forum. I think instead most attacks should do standard damage, and each forum might have about one to three of those attack types that they are either strong against or more susceptible to. This would make more sense I think, and it would also make it fairer to the different clbumes who lack good attacks of a certain type.