Rate my Pokemon Diamond Team?

i got to agree, you need a decent fire type in there or you'll drown. kudos for catching dialga and for obtaining rhyperior but a decent fire type like infernape couldn't hurt. i personally think that empolean is downgraded because the steel type in him/her means that fire is more effective, even though not a lot effects steel. other than that, just level up more and cover more types and you'll be fine!!!!