Unlike Legendary and Mega Battle Raids, which often offer up to at least a week of battle opportunities coming and going, Elite Raids bring an even more limited time opportunity to the time. Pokemon GO trainers who want to battle, defeat, and catch an Elite Raid boss are going to want to be extra prepared for the battle due to the limited opportunities.
Elite Raid Boss' provide a real challenge and trainers need to bring their A-game when it comes to a counter roster. That means that there is a real need to study each Pokemon GO boss' weaknesses and strengths ahead of time and bring an optimal roster into the field. When it comes to a showdown with Hoopa Unbound, that means exploiting its double weakness to Bug-types and filling in an extra roster spots with the best Fairy-type counters available.
Hoopa Unbound can be one of the toughest battles that trainers have encountered, so it's more important than ever to take all the necessary steps to ensure victory. That means not only fielding the best roster of counters available, but also using some Stardust, Candy, and TMs to optimize that roster with top tier moves and high level CPs. Trainers also need to enter these battles with enough allies to make sure the limited time opportunity isn't wasted on a failed attempt.
Hoopa Unbound Weaknesses
This Raid Boss is a dual Psychic- and Dark-type, which makes Hoopa Unbound weak to Bug-type moves (x2) and Fairy-type moves.
Best Hoopa Unbound Counters
Scizor (Mega) - Fury Cutter/X-Scissor
Beedrill (Mega) - Bug Bite/X-Scissor
Pheromosa - Bug Bite/Bug Buzz
Vikavolt - Bug Bite/X-Scissor
Yanmega - Bug Bite/Bug Buzz
Genesect (Douse) - Fury Cutter/X-Scissor
Genesect (Normal) - Fury Cutter/X-Scissor
Genesect (Burn) - Fury Cutter/X-Scissor
Absol (Mega) - Snarl/Megahorn
Pinsir - Bug Bite/X-Scissor
Scyther - Fury Cutter/Bug Buzz
Accelgor - Infestation/Bug Buzz
Scizor - Fury Cutter/X-Scissor
Escavalier - Bug Bite/Megahorn
Golisopod - Fury Cutter/X-Scissor
Fielding a roster of those counters should put players in a great position for victory if they manage to enter the battle with enough other trainers. This Raid Boss definitely is not a pushover, so be sure to find the best Bug-type counters available when preparing for this one. Trainers who don't have to top tier counters can still find a path to victory, as long as they find enough friends to enter the fight with and chip in with the best Bug and Fairy move sets that they have in their arsenal.
Be sure to check back in the near future for more Pokemon GO strategy guides, news, and updates. Until then, good luck out there, trainers!