Okay, so swarm is when you talk to Dawn's little sister in Sandgem town. She will say : " What did the news say again?" then she says "oh yeah theres a whole bunch of ______ on route ______ " " You better hurry i want you to do better than my sister Dawn.
So basically she tells you about a swarm of pokemon on whichever route she tells you. The Pokemon change everyday when you talk to her so if you are looking for a certain pokemon during a swarm but it wan't the one you were hoping for, just save and change the time to 23:59 on your DS, after a minute passes talk to her again and she will mention a new pokemon :)
Most of the swarm pokemon are good :)
I managed to catch Absol, Pidgeot, Surskit and lots more thanks to this :)
Hope this helped :D
Swarm
you get it when there is a swarm
You can obtain Swinub from the swarm in Route 217 in Pokemon Pearl.
You can find it during the Swarm.
Get slakoth in a swarm and evolve it.
You (as in the person) don't swarm. Instead, the Pokemon swarm. If you watch TV, sometimes they will announce that a bunch of _____ (a bunch of a certain Pokemon) has been spotted at ______ (a place). That is the swarm Pokemon. Swarm Pokemon are really special. Every day of the week there is a new swarm Pokemon. Catch them all! Hope this helped! =)
You can find it in a swarm at Route 217
You can migrate or catch one from a swarm or trade.
Swarm occasionally, in front of Fuego Ironworks.
beldum swinub eletrike skitty lotad nosepass smoochum
In Pokemon Diamond and Pearl, Phanpy swarms on Route 207.
In Pokemon pearl, you get a nosepass through a swarm. You can get a swarm by talking to the little girl in Lucas' house in Sandgem Town