Conversion 2 will change the user's current type to a type that either resists or is immune to the type of the last damaging move it was hit by. An example would be if the foe's Pokémon used Thunderbolt in which is an Electric-type move that was the last attack to hit the user's Pokémon, then that Pokémon will change to a Ground-type Pokémon.
Generation V
Conversion 2 now changes the user's type to make it resist the last move the target used, including non-damaging moves.
Description
Games
Description
A move that changes the user's type into one that is resistant to the opponent's last move.
Bold indicates a Pokémon gains STAB from this move. Italics indicates a Pokémon whose evolution or alternate form receives STAB from this move. A dash (−) indicates a Pokémon cannot learn the move by the designated method. An empty cell indicates a Pokémon that is unavailable in that game/generation.
In the manga
In the Phantom Thief Pokémon 7 manga
Porygon-Z
The user changes its type to take less damage from enemy moves.