Speed is something like:
a) If Stat Change is positive: (Speed)*(Stat Change)*(1.75)
b) If Stat Change is Negative: Speed/((Stat Change)*(1.75))
In this case the result is: 48/(1*1.75)= 27.42 speed. Faster than Lotad.
Second thing (again, I shouldn't mention this): Scraggy should get Moxie Boost from Diababa (I love this name) and Veran. +2atk.
That being said, here are my actions. Feel free to deal 90 damage with 7 energy. Consider this a puzzle of sorts.
Unown B (Bulldoze) - Surf