Finally! A compeditive use for False Swipe!
WARNING: This requires a strategic IV and EV placing, and this will not work if the speed stat was lowered.
Pokemon 1: Knows False Swipe, is the strongest (highest Atk) and fastest
Pokemon 2: Knows Endeavor, is 1 speed point slower than Pokemon 1
Pokemon 3: Ribombee knowing Pollen Puff, 1 speed point slower than Pokemon 2
At least 1 Pokemon should have a priority move (preferably Extreme Speed) or has the ability Prankster and a status move (preferably toxic/will-o-wisp)
1. Have PKMN 1 use False Swipe on PKMN 2.
2. Have PKMN 2 use Endeavor on the opponent's Bulkiest Pokemon that is not immune to Endeavor.
3. Have Ribombee use Pollen Puff on PKMN 2.
4. Use the priority move on the Pokemon.
If done correctly, the Pokemon that got Endeavor'd should be fainted.