Exhaust- Useful in matchups vs AD champions who have bursts with decent CDs. If you do this when theytry and burst, their damage is dropped greatly and you gain a HUGE advantage in a fight.

Ghost-Good vs fast champions (Ones you will need to chase for an extended period) IE: Nidalee

Heal- Useful for baiting your enemy into moves, allows you to aid your team in teamfights.

Revive- Shen and Pantheon only.... Read More