A swarm
no you cant. you catch spheal in Pokemon sapphire and snorunt in Pokemon ruby.
you can catch snorunt on route 216 in the mountains (not mt. coronet).
Route 216 with the Poke Radar
Catch it in snowpoint city or migrate one from ruby, sapphire or emerald.
On B3F of Shoal Cave(Low Tide)
no you cant. you catch spheal in Pokemon sapphire and snorunt in Pokemon ruby.
you can catch snorunt on route 216 in the mountains (not mt. coronet).
Catch a Snorunt and evolve it.
In Shoal Cave
no
Route 216 with the Poke Radar
There is no Pokemon called Leo
You have to transfer it from your Pokewalker. You get it on Icy Mtn. Road.
I think Ash catches the "prankster" Pokemon Snorunt on episode 385 which is called Let it Snow, Let it Snow, Let it Snorunt.
You can catch as much as you want.
Catch it in snowpoint city or migrate one from ruby, sapphire or emerald.
On B3F of Shoal Cave(Low Tide)