Competitive Quilava | Bulbagarden

If you really wanted to use him you could use a scarf set

Quilava@ Choice Scarf
Blaze
Timid
252 SpA/252 Spe/4 HP

Eruption
HP Grass
Extrasensory
Will-O-Wisp

This really is the best you could do. Due to it's limited move pool and poor stats it really isn't a great option.