Tip
It is nearly impossible to kill Pantheon after level 3 due to his (E). Go in for the kill if [W] deals damage twice with [Q]-basic attacks to close in and maximize the damage of [P] before reaching level 3. However, Pantheon can counterplay and kill you instead if you make a mistake, so nuke quickly and retreat. After reaching level 3, use [W] to push lane quickly to go roaming.
Talon vs Pantheon

