TM78 teaches a move to a compatible Pokémon. TM78 is:
Sorry, we don't have location data just yet.
|If it is the opposite gender of the user, the foe is charmed into sharply lowering its Sp. Atk stat.|
Black 2/White 2
|The user stomps down on the ground and attacks everything in the area. The targets’ Speed stat is reduced.|
|X/Y||The user strikes everything around it by stomping down on the ground. This lowers the Speed stat of those hit.|