Read this info on [TR02] Flamethrower in Pokemon Sword Shield: Isle of Armor! Check out where to get it, and what Pokemon can learn Flamethrower!
Flamethrower Stats & Where To Get
|Description||The target is scorched with an intense blast of fire. This may also leave the target with a burn.|
|How To Get||Watt Trader|
Pokemon That Can Learn Flamethrower
* Can be searched with Pokemon name.