You can only get TM73 Thunder Wave from the TM seller at the Battle Frontier’s Exchange Service Corner. Each copy of the TM will cost you 32 BP, and this is the only way to get the Thunder Wave TM in Pokémon Platinum.
You will also need to have beaten the Elite Four first before you can access the Battle Frontier and buy the TM.
TM73 Thunder Wave Location
Copies of TM73 Thunder Wave can only be purchased at the Battle Frontier, which is the huge building to the northeast of the Pokémon Center in the Battle Zone’s Fight Area.
After entering the building, cut through the Entrance Hall and head through the door to the north.
In the middle of the Main Hall will be several kiosks making up a central marketplace. This is the Exchange Service Corner.
Speak to the clerk at the southeastern kiosk (the one with the red and white striped canopy).
Scroll through her inventory until you find the TM73 Thunder Wave listing.
Each copy of TM73 Thunder Wave costs 32 BP, which must be won in the Battle Frontier’s various facilities.
Thunder Wave Details and Uses
Thunder Wave is a non-damaging Electric-type status move that paralyzes the target.
|Thunder Wave Move Details|
|PP||20 (max. 32)|
The paralysis status effect cuts the afflicted Pokémon’s Speed stat by 75%, and adds a 25% chance during every turn that they will be stricken with full paralysis – this renders the Pokémon unable to move for that turn.
This makes paralysis one of the most debilitating status ailments in the game, despite not inflicting any damage.
It’s the perfect status condition to inflict on a Pokémon whose Speed stat is one of its biggest strengths.
Thunder Wave is slightly more useful now than in later games, in which its accuracy is cut by 10%.
Miscellaneous Info about Thunder Wave:
- Thunder Wave is ineffectual against Ground-type Pokémon, who cannot be paralyzed by Electric-type moves.
- The Ability Magic Guard will prevent a Pokémon from becoming fully paralyzed.
- A copy of TM73 can be resold for 1000 PokéDollars, although this is not recommended due to the initial costliness of the TM.
- If Thunder Wave is used in a Pokémon Contest, it will earn the user 2 Appeal Points and prevent the Voltage from going down in that turn.