Pros
Quite high burst damage
help the team with mushrooms
can get assists with mushrooms/easy to get charges.

Cons
Can be focus easily
oracle takes away some of the fun.

to start the game play as you normally would with a teemo, with care.
the item to start feel free to change to make you feel more comfortable
try to aim mid if u can.

an is very easy to get loads of Ap with mushrooms assist,finish more life more mana more ap, after that ends and start with HP+AP and mushrooms are slower is a win win win, continuous with so much ap,mushrooms would hit very very hard and + would hit incredibly hard too.

keep in mind you have to help the team put the bombs in the right places, and play carefully and try not to die,use your spells to get out quickly from the battle if it becomes too dangerous.

If all goes well and you would have enough charge so that the mushrooms should be destroying the enemy team, with the combo, , should hit pretty painful.

are also good, use any that you feel more comfortable remember that you can use Teleport in mushrooms.

of course the use of this would have to be a change in the masteries.

Green:Thinking like ward and a little chance of hitting
Red:Are the safest for a gank/kill
Remember

the easiest way to fight oracle is to plant the mushrooms in the bushes