Quick Claw I think increases your speed or the priority of your moves.
For Mean Look, do any of these:
Get an Eevee from Swarms or the woman that gives you one. Evolve it into an Umbreon, and I think by the 40s or 50s, it should learn Mean Look. Catch a Ghastly, evolve into Haunter. After a couple more levels, it should learn ML. Golbat, train it until it learns ML.
However, you could always get a Dugtrio or a Wobuffett like the person above me suggested. Arena Trap should keep it in there, unless it by any chance knows Whirlwind, Roar, or Teleport (they're not likely for Mespirit to know, though).