Houndoom is exclusive to Pokemon Pearl so it must be traded.
Swarm. Route 230 in the grass.
in route 212 in pastoria city
Route 216 with the Poke Radar
you can catch dittos in Pokemon diamond and pearl with poke radar in route 218 but its pretty hard to catch them + find them. :)
you can catch snorunt on route 216 in the mountains (not mt. coronet).
You have to catch a houndoom on route 214 or 215 and breed a houndour from it. You have to get houndoom to appear via pokeradar.
you can catch houndour on route 7 at night only and evolve it to level 24 and that's how you can get houndoom well that or you can trade
You can catch Scythed on route 229.
on route your mom
No.
grimer is in route 212
On route 224 with the pokéradar.
Route 209 and in the southern part of Route 210.
You can catch Lanturn in Pokémon Diamond and Pearl by Fishing with the Super Rod in Route 220.
Swarm. Route 230 in the grass.
in route 212 in pastoria city
you have to use your pokeradar on route 205