I absolutely despise Hydreigon. The design is weird, and it strikes me as odd that almost all of the Pseudos are dragon type, anyway. Other than that I find that it sucks as a Pseudo. It's got power, sure, but it's a little too easy to bring down, and the fact that it takes so long to get to the final evolution is absurd. Overall Hydreigon is easily my least favorite Pseudo.