Litwick can be found in the Celestial Tower at levels 28-35, and evolves into Lampent at level 41 and into Chandelure with a Dusk Stone.
Metang can be found in Giant Chasm at levels 45 and 48, and evolves into Metagross at level 45.
I need someone to combat Fighting types and these are the best options.
Natures are Rash for Chandelure and Metagross is going to be Adamant.
Team is Magnezone, Haxorus, Chandelure/ Metagross, Krookodile, Samurott, Lucario.