TM100 is an item in the “All machines” category (TMs and HMs). It costs ₽5000.
In-game descriptions
| X / Y · Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee! · Sword / Shield | The user tells the target a secret, and the target loses its ability to concentrate. This lowers the target’s Sp. Atk stat. |
|---|
Move taught
| X / Y · Omega Ruby / Alpha Sapphire · Sun / Moon · Ultra Sun / Ultra Moon | Confide |
|---|---|
| Scarlet / Violet · Scarlet: The Indigo Disk / Violet: The Indigo Disk | Dragon Dance |
| Legends: Z-A | Gunk Shot |
Where to find it
Not placed on the atlas maps (so far: Red/Blue and Generation 3).
Sources : PokeAPI (items, item_flavor_text, machines) · atlas · pokeemerald species_info.h