Show Suboptimal/Unranked Movesets

Vice Grip is not a good move. Use your TM here.

Rock Smash can pair with Close Combat or, less preferably, Submission for suboptimal Fighting-type offense.

Bug Bite and Fury Cutter are preferred over Rock Smash , to be paired with X-Scissor for Bug-type offense.

Submission has better coverage than X-Scissor but is more reactable.

On defense, Rock Smash does over double the DPS of Pinsir’s other fast moves.

Pinsir is Pokemon with potential. Bug-type moves have effectiveness against Grass, Psychic, and Dark-types. Pinsir can see use in Alakazam and Mewtwo raids, although it is not close to being optimal. Pinsir’s Fighting-type movesets can contest Tyranitar, Snorlax, and Blissey, but Machamp and many other Fighting-types do this job much better.

Defensively, Pinsir has bad stats and a poor typing. Fire, Flying, and Rock-type attackers are common, which prevent Pinsir from being threatening.

In the future, Pinsir does have a fairly powerful Mega Evolution looming on the horizon, though when/if/how this will be implemented remains to be seen.