
Originally Posted by
TotalPotato
Without TMs, I'd advise a physical moveset: Flare Blitz, Close Combat, Swords Dance and Thunderpunch/Stone Edge. You can breed Swords Dance, Thunderpunch and Stone Edge onto Chimchar using Smeargle. Just be sure not to evolve Monferno until Level 49, when it learns Flare Blitz.
A special or mixed moveset is more difficult, mainly because good special Infernapes run Grass Knot, which I don't think you can get onto Smeargle if you're only using ingame trainers. You probably don't want the hassle of Hidden Power breeding, and Focus Blast is an unreliable move to use. If you don't mind trading for a Pokémon with Grass Knot over the GTS, you could go for a mixed set; but if that doesn't appeal to you, stick with a physical set.