The gist of it is that the Pokémon have their Dream World abilities pre-coded into them, so they're approximately as "legitimate" as Deoxys was before the event release of him; however, they lack Dream World sprites, so it's actually impossible to ever encounter them in Black or White versions, now or in the future... which implies that they won't see release until 5.1 Gen or later.sorry ulti, but u shouldnt bash DW the way u do.
I can understand u disliking PO DW since team non-team preview games will never exist.
But comparing landorus with sheer force with wonder tomb is incorrect. I'm not to sure how the programming works and how the PO creators found out the DW abilities for unreleased pokes but i HIGHLY doubt they just pulled it out their ***.
Don't get me wrong i love wifi too but, DW is a legitimate tier as well
Or through some oddball event like the Eeveelutions.