Scourge

Like Zerglings, Scourge spawn in pairs from a single Larva and can be produced in large numbers in a very short period of time. The Scourges serve as kamikaze-attack flying units. Scourge has the strongest damage of all the flying units in the Starcraft. They are useful when they against lone or small groups of enemy air units, but they lose their usefulness against larger groups of units. This is because they has low vitality. This week point can be made up when you use Scourge with Mutalisk. Mutalisk can make enough time to achieve Scourge's attack. One thing to keep in mind when using Scourge is knowing how many are needed to destroy any given target. I'll give you that information.

Wraith - 2 Scourge

Dropship - 2 Scourge

Valkyrie - 2 Scourge

Science Vessel - 2 Scourge

Battlecruiser - 6 Scourge

Observer - 1 Scourge

Shuttle - 2 Scourge

Scout - 3 Scourge

Corsair - 2 Scourge

Carrier - 5 Scourge

Arbiter - 4 Scourge
Overlord - 2 Scourge

Mutalisk - 2 Scourge

Guardian - 2 Scourge

Devourer - 3 Scourge