TM098 (Japanese: わざマシン098Move Machine 098), known as TM98 prior to Generation IX, is a TM introduced in Generation VI. It teaches a compatible Pokémon a move. The move it teaches depends on the game. For compatibility, refer to the move's page.
In the core series games
Generation VI
In Generation VI, TMs can be used any number of times.
TMs in the Mystery Dungeon series are named only by the move they teach. For example, Attract is the item that teaches the move Attract. Most TMs, however, correspond to a TM in the core series' contemporaneous games.
In Pokémon Super Mystery Dungeon, some TMs can only be used once while rainbow-colored TMs can be used any number of times.
In Rescue Team DX, TMs can only be used once. Whilst the available TMs are the same as those in Pokémon Sun and Moon, the TM list order is the same as for Super Mystery Dungeon (that is, in the TM order for Pokémon Omega Ruby and Alpha Sapphire), with newly added TMs added to the end of the list.