Its just op on 3vs3 if you are good enought to surwive early game

I always take Ignite and Flah, because you need Ignite to finish the enemy and Flah to escape.

First you need empower to farm and make dmg on the enemy. Than counter strike or leap strike, it depends on if your opponent is range or mele char. But in 3vs3 you often have mele chars on solo lane

Pros:
-very powerfull late game
-just op on 3vs3
-take very low dmg from ap chars

Cons:
-low life at early game
-low dmg at first 4 levels