The same reason why Nidorina and Nidoqueen cannot breed
Menopause --- "Official Toy Scraggy of the Pokemon Rumble U board" 3DS code: 1118-1052-2607 (PM me if you add me)
#22FierceDeity1026Posted 5/10/2013 6:36:32 PM
Because they have a "headache."
#23Dark Young LinkPosted 5/10/2013 6:51:19 PM
They just feel it irresponsible to have a bunch of baby legendarys for one trainer to control.
So when you die, your Lugia will start having Eggs, they will grow up to be wild Lugia other players can capture, etc. --- Nominate N for The Great GameFAQs Character Battle IX! Sleep? F*** sleep, Toonami is on!!- GenesisSaga
#2412345_pwnedPosted 5/10/2013 7:21:44 PM
Some of them (or a lot) are one of a kind, who don't have parents. So they were never taught how to multiply --- 16
#25MagikarpRulesPosted 5/10/2013 7:37:56 PM
All of them, save for Manaphy, were spayed and neutered. Or Arceus made it so that they just can't do the deed. I don't know. Ask Tajiri, or at least Masuda.
#26CharizardFirePosted 5/10/2013 7:41:10 PM
They like their privacy. --- http://i458.photobucket.com/albums/qq303/CharizardFire6/Char-Brawl.gif
#27WallydraiglePosted 5/11/2013 4:32:55 AM
Maybe they need some kind of rare item to be able to breed and the item doesn't actually exist in the games. --- Always interested in any Pokemon event distribution cartridges. My email is in my profile.
#28gladwyn101Posted 5/11/2013 5:06:24 AM
Maybe legendaries reproduce asexually once every century or so. As for Ho-Oh, it doesn't need to breed because when it dies, being a phoenix pokemon, will just reform from its ashes. --- Bazinga! *dives into ballpit* Pokemon Black Friend Code: 0605-2800-9952; Trainer Name: Solace; First Pokemon (roleplaying): Shiny Umbreon
#29gren-aidPosted 5/11/2013 5:49:45 AM
I believe that only Regigias, the Weather Trio, the Lake Trio, the Creation Trio, Arceus, The Kami Trio and the Tao Trio are all unique. The other legendaries can breed, but just choose not to for the player. Mewtwo, Regirock, Regice, Registeel and Genesect were created, so it's possible that more could be made. --- 'When thou enterest into Oblivion, Oblivion entereth into thee.' -- Nai Tyrol-Llar