Alright El, Relax this round but if that Growlithe tries any attack after the first time you relax, hit it with Hyper Beam again to make it sorry for hurting you so much already, blast up some more asphalt and blow up some cars while you're at it to really lay the hurt down! Then, use Secret Power and lets see what happens!
Relax-->Relax/Hyper Beam if attacked-->Secret Power
EDIT: Didn't have Hyper Beam reflected in my summary attacks