What Pokemon is number 147 in Pokemon Diamond?

I'm pretty sure its Mesprit... the pink ledgendary Pokemon

an1mefreak here... indeed.....147 is infact mesprit, but take this into consideration. he will flee on the first chance he gets to bringing a Pokemon that knows mean look or has the ability (arena trap) will come in handy. also what ever damage mesprit takes, when he flees, the next time you see him he will not regain any health to basically he keeps the damage taken. and he's a stuborn one to catch so good luck!!