MP3 at lvl 55? My god you like things to be slow.
MP3 starting around lvl 45. (Better yet, go to GS2 or GS5. You'll never use an HP pot for 10 levels.)
Windraiders starting around lvl 55. They already get to be slow by around 64-65. Train here until you can get to Blue Kents.
BWs have power. USE IT.