The American Chemist, Viper deploys an array of poisonous chemical devices to control the battlefield and choke the enemy's vision. If the toxins don't kill her prey, her mindgames surely will. On patch 13.05, Viper's published abilities are Q Poison Cloud, E Toxic Screen, C Snake Bite, X Viper's Pit, P Toxic. Role brief: Controllers are experts in slicing up dangerous territory to set their team up for success.
This page is a kit reference for English-language search — “Viper abilities”, “Viper Controller” — not a lineup guide. Similar controllers are linked so you can compare official kits, not invented pick rates.
What does Viper do?
Viper is a Controller. The American Chemist, Viper deploys an array of poisonous chemical devices to control the battlefield and choke the enemy's vision. If the toxins don't kill her prey, her mindgames surely will.
Where is ability damage?
Only in Riot’s kit text when they wrote a number. Codexgames does not estimate dart damage, molly DPS or ultimate HP.