As of Gen V, there are 48 Legendary and Mythical Pokémon. While very few are obtainable in PokeMMO, many of them can be registered in the Pokédex.   This table shows the availability of Legendaries:   Special thanks to @Toupi for the original version of this guide, and to everyone who contributed additional information: @Neuzzz@Unnefable@DragoTamer@Serfagorn@Elizn@VividLatias@Dalebulla@lanhero@Furabia@RysPicz