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One thing to keep in mind: You are not just your main type. Your secondary types, naturally, give you additional weaknesses, so you can complement those as well. Here we have Fighting with Electric and Steel being good secondary types, but they're both weak to Ground. So you can use Hawlucha or Flamigo in order to keep it more balanced. Here we also see that Heracross would be able to be your Ground resist and still help you with Psychics.