It knows:
Sunny Day: Powers up Heat Wave, charges Solarbeam.
Solarbeam: High power, high accuracy, charged by Sunny Day, used to deal with Rock, Ground, and Water types.
Heat Wave: High power, powered up by Sunny Day, decent accuracy, chance to burn, STAB.
Gyro Ball: Powerful with Torkoal's low Speed. Also deals with Rock types.
Toakoal Learnset