you find it in silph co. on the 4th floor. next to a sientist on the table
Chat with our AI personalities
Giga impact
You can't, giga impact is a Gen 4 move.
Imran: Yes Snorlax can learn giga impact. When I caught the Snorlax Lvl50 that was sleeping in front of Digletts Cave it knew Giga Impact in Pokemon Heartgold and Soul Silver. I do not know about other pokemon games in which you can catch Snorlax that they would know Giga Impact or not. But of course you can teach Snorlax Giga Impact with a TM. So, yes Snorlax can learn Giga Impact.
Almost All Pokemons In The 3rd Or 2nd Forms Can Learn Giga Impact so Can Dragonite
The TM that contains Giga Drain is given to you by the Celadon City gym leader Erika after winning a battle against her.