Before Pokemon Diamond/Pearl/Platinum, Togepi was a Normal-type Pokemon who had one evolution: Togetic. Unlike most Pokemon, Togepi evolves by having a strong bond with its trainer. With Diamond/Pearl/Platinum, Togepi could evolve even further into Togekiss. By Pokemon X/Y, the Togepi-line's Normal-typing was dropped for the Fairy-typing instead. This eliminated their weakness to Fighting-type Pokemon and made them super effective against Dragon-type while being weak to Poison and Steel-type moves. Togepi and its evolutions make a return in Pokemon Legends: Arceus with the same evolution methods they've had since the fourth generation.