I was thinking along the lines of:
hidden power(grass)(electric)(fighting)-covers all of his weaknesses in one move. Electric can deal with his main counter, mantyke. Fighting can take out the annoying munchlax, or one of the titans of LC, houndour. I Think I'll stick with grass.
quick attack-A priority move in little cup!? Who would've guessed?
flmaethrower/fire blast/ heat wave/overheat-Insane power coming from cyndaquil, not to mention if he has blaze up.
extrasensory-this move has a lot of potential, but It could be better.
What are your suggestions? I've also done physical cyndaquil sets before. Cyndaquil is perfect in unevolved battles where your pokemon can be level 50, because that way he has eruption...