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By GamGem ResearchLast updated 3 Sept 2026 · 00:00

Act 5 · Patch 13.05

Viper

Controller · Post-plant ownership

Controllers are experts in slicing up dangerous territory to set their team up for success.

Why we fit it where we do One long sightline is what turns a fuel-managed wall into a whole half of the map.

The four

  • Snake BiteC · damage

    EQUIP a chemical launcher. FIRE to launch a canister that shatters upon hitting the floor, creating a lingering chemical zone that damages and applies Vulnerable.

  • Poison CloudQ · smoke

    EQUIP a gas emitter. FIRE to throw the emitter that perpetually remains throughout the round. ALT FIRE to lob. RE-USE the ability to create a toxic gas cloud that Decays opponents inside it at the cost of fuel. This ability can be picked up to be REDEPLOYED before the round starts and can be RE-USED more than once throughout the round.

  • Toxic ScreenE · wall

    EQUIP a gas emitter launcher that penetrates terrain. FIRE to deploy a long line of gas emitters. RE-USE the ability to create a tall wall of toxic gas that Decays opponents that cross it at the cost of fuel. This ability can be RE-USED more than once.

  • Viper's PitX · smoke

    EQUIP a chemical sprayer. FIRE to spray a chemical cloud in all directions around Viper, creating a large cloud that Nearsights players and Decays the health of enemies inside of it. HOLD the ability key to disperse the cloud early.

What it asks of you

  • AimMedium
  • MapHigh
  • TimingHigh
  • TeamLow

Rehearsal Custom practice · Set the screen from spawn and hold the plant with the fuel bar in view.

Watch out Fuel does not come back mid-round — a wall left on is a post-plant you will not have.

Buying for it

Priority
Screen and cloud before armour
First utility
Toxic Screen across the crossing
Position
Inside your own gas, on the plant
The mistake
Burning the fuel before the spike is down

Patch 13.05

Nothing in patch 13.05 names this agent. Your habits carry over — the retest list on the patch page is short and this is not on it.

Situations this kit fills

  • Split A · Post-plantA Rafters → A Site
  • Split B · Block visionB Alley → B Tower
  • Sunset A · Deny plantA Elbow → A Site
  • Sunset Mid · Block visionMid Bottom → Mid Courtyard
  • Abyss A · Block visionA Lobby → A Main
  • Abyss B · Deny plantB Link → B Site
  • Lotus C · Block visionC Lobby → C Main
  • Lotus B · Deny plantB Upper → B Site
  • Open the whole library

Other Controllers

What this page will not print

  • Pick rate
  • Win rate
  • Tier

Riot publishes no public match statistics and this product holds no sample of its own. What replaces them is on this page already: what the kit does, what it asks of you, and which situations it can fill.