Is there a difference between legendary and mythical?

Question

Another person said that he read a guide that said they were different.
Also, does everybody define a legendary as a Pokemon that cannot evolve from another Pokemon or hatch from an egg, and has a BST higher than 579?

Comments

I really don't like terminology.

Answer 1

A Mythical Pokemon iis a term generally used to describe Event Legendary Pokemon. Mythical Pokemon have to be obtained by special events that are distributed at certain locations. Where as a regular Legendary Pokemon can be obtain through normal gameplay. These Pokemon can not be found through traditional encounter methods.
Mythical Pokemon Include:
Mew
Celebi
Jirachi
Manaphy
Shaymin
Arceus
Genesect
Meloetta
Keldeo
Diancie
Hoopa
Volcanion

Hope I helped.

Answer 2

A Mythical Pokémon is just an Event-exclusive Legendary (bar Deoxys, who's kind of in limbo since ORAS).

Source: Knowledge and Deduction

Comments

sniped qq

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Though it would probably be more fair if Jirachi was encountered during the delta episode instead, since Deoxys is OP.