I'm doing a pre-trade evolution team and one of the Pokemon on it will be shelmet. It has bug buzz, energy ball, sludge bomb. Should the 4th move be yawn or final gambit?
Yawn isn't very good in competitive. One can switch out immediately and the Yawn is removed, rendering the Yawn to be useless. Final Gambit allows you to get heavy damage if you're up against a foe that threatens a lot of your team.
Hope I helped.