First of all change Meowstic's nature to Competitive. Hawlucha should wreck Hariyama, Mienshao and Conkeldurr if you send him out at the right time tbh. Get Thunder Wave on Magneton in place of either Metal Sound or Tri attack. Sturdy Thunder wave means you always get 2 turns before you die - in the first turn you use T. Wave after your opponent moves (as Magneton's speed is pretty low) then in the second you outspeed and get a free attack off and with good RNG you can even paralyze them for more turns. Remove Protective Pads as they are completely useless for him and give him a Thunder boosti