TM92 Trick Room is on the ground at the Abundant Shrine. You can find this shrine only in the post-game, directly off of Route 14 located west of Undella Town.
But before you can reach the Abundant Shrine you’ll need to complete the main story in B&W by defeating Team Plasma and the Elite Four.
As for the move itself:
Trick Room is a Psychic-type move that flips the priority of battle for five total turns. Under this effect, the slowest Pokémon will move first, and the quickest will move last. Trick Room is one of the most popular Status moves in the competitive scene.
TM92 Trick Room Location (Step-by-Step)
Step 1: Starting at the Undella City Pokémon Center, head south to walk onto the beach towards the water.
Step 2: Use Surf on the ocean and continue south.
Step 3: Directly across the water is another beach. Hop out of the water and continue your trek south.
Step 4: Continue south to reach Route 14, crossing the bridge ahead.
Step 5: Turn to go west at the end of the bridge and walk alongside the water.
Step 6: Just ahead is another bridge. Walk over that bridge and head south.
Step 7: Directly due south is another bridge. Use Surf while standing on that bridge, facing west towards the waterfall.
Step 8: Use Waterfall to climb the cliff ahead.
Step 9: From the top of this waterfall, you’ll spot another waterfall if you keep moving west a bit. Climb this waterfall as well.
Step 10: From the top of the second waterfall, head west onto land.
Step 11: Another waterfall can be found ahead. So head down that 3rd waterfall and climb back down the cliff.
Step 12: From the bottom of that waterfall, turn west and head onto land.
Step 13: Walk northwest and enter the forest ahead – this holds the Abundant Shrine.
Step 14: Once you’re inside the Abundant Shrine, head northwest over the stairs ahead.
Step 15: To the west is a house and a staircase.
Take the stairs north and continue walking through the tall grass.
Step 16: Just ahead is another set of stairs, but you can ignore them. So walk past these stairs and just head west.
Step 17: Follow the path along, veering southwest past the pacing trainer.
Step 18: Keep west until you encounter another set of stairs.
Take these stairs leading up to the north.
Step 19: Continue climbing the next set of stairs ahead, veering northeast past the trainer.
Step 20: Keep going north over the next set of stairs, then turn east past the shrine.
Step 21: Just past the shrine is a body of water. Use Surf to cross the water going east.
Step 22: Surf east across the water until reaching land. Then continue east down the stairs.
Step 23: TM92 Trick Room will be found in a Poké Ball on the ground to the east just after the set of stairs.
TM92 Trick Room Details + Uses
|Trick Room Move Details|
Trick Room is one of the more popular Status moves in the game, and it’s frequently used by competitive players.
This Psychic-type move reverses priority order for five turns, allowing the slowest Pokémon to move first.
One of the more popular uses of Trick Room is to turn a bulky but slow tank into an aggressive sweeper.
Pokémon like Snorlax and Slaking will no longer be hampered by their low Speed with Trick Room – so they’d have the potential to deal massive damage over a handful of turns. Unfortunately, TM92 is only available in the post-game in B&W, so for a single-player playthrough this TM is hard to utilize to its fullest potential.
But because Trick Room is so popular in the competitive scene, many players are able to spot a potential set-up based on the makeup of a team.
A slow Pokémon is an easy giveaway for those looking to counter the move.
If you’re hoping to use Trick Room in battle, grabbing TM92 is a must. Because only Porygon-Z is able to learn the move via level-up.
Typically, Trick Room is used in the Doubles format where one Pokémon is able to set-up their teammate. However, there are a few Pokémon that are able to set themselves up efficiently with this move as well, such as Jellicent and Reuniclus.