The Unchained Action Economy puts "move actions" as 1 act (You get 3 acts per turn).
Sphere Spells (Flaming Sphere, Aqueous Orb, etc) let you move the spell effect as a "move action".
With these two sets of circumstances, you could - after 3 rounds - have 3 Sphere Spell effects out and zooming around a battlefield at the same time. I know many combats are over by this time, but let's pretend you had 2 rounds of prep time, and didn't feel like buffing, summoning, etc.
What 3 Sphere Spells would be most effective between damage and battlefield control? I'd also like to add any other spells with a movable area/effect as a "move action", so please feel free to add to the list.
Aqueous Orb
Ball Lightening
Flaming Sphere (Greater)
Gusting Sphere