If I were redesigning Flaming Sphere, I'd prefer if it were:
Flaming Sphere
Daily ✦ Arcane, Conjuration, Fire, Implement
Standard Action
Ranged 10
Target: One creature adjacent to the flaming sphere
Attack: Intelligence vs. Reflex
Hit: 1d6 + Intelligence modifier fire damage.
Effect: You conjure a Medium flaming sphere in an unoccupied square within range, and the sphere attacks an adjacent creature. Any creature that ends its turn next to
the flaming sphere takes 1d6 + Intelligence modifier fire damage. As a move action, you can move the sphere up to 6 squares.
Sustain Minor: Make another attack with the flaming sphere.
Changelog: 2d6->1d6, 1d4->1d6, _end_ of turn for autodamage, attack as a sustain minor instead of minor + standard
Why? Because I think it makes it actually a control tool by making people move around (or take damage), I dislike autodamage with the inability to respond, and I dislike removing the option to use your other powers in favor of a more damaging standard action at-will attack.