I have a suggestion for the "
Special Poke Ball Inheritance Guide" written by SuperJOCKE.
I have never seen the following mentioned or written well on the various Pokémon fansites and from my personal experience breeding, trading, and being a staff member in the PS Wifi and Breeding rooms, I feel that it needs and deserves to be addressed. This information is a collection of my own personal knowledge double checked using Serebii.
When Gen V introduced Hidden Abilities numerous Pokémon did not receive a Hidden Ability, but were able to be found in the Dream World. Upon the release of Gen VI several of these Pokémon were given a Hidden Ability. These Pokémon cannot have their Hidden Ability and be in a Dream Ball.
These Pokémon are: Duskull, Minun, Plusle, and Keckleon.
Also there is a bit of redundancy in the "Special Cases With Regular Balls" section, sub section "Dream World." Aerodactyl is listed and is implied to be only obtainable in regular balls by catching it in the Dream World. This is not true as Aerodactyl can be caught in XY in Friend Safaris. I feel that there should be an addition to this subsection as well. As of ORAS, the following Pokémon, in addition to the fossil Pokémon mentioned in the article, may only be bred with their HA and be in one of the regular Pokeballs if the original female was caught in the Dream World, as they are not able to be caught with their HA in GenVI.
These Pokémon are: Barboach, Basculin red/blue, Burmy, Carvanha, Drifloon, Feebas, Goldeen, Hippopotas, Horsea, Kangaskhan, Karrablast, Luvdisc, Munchlax, Qwilfish, Remoraid, Sentret, Shelmet, and Wailmer.