Infernus Guide: Positioning, Abilities, and Item Choices

Infernus wants enough time and a clear angle to land repeated shots, build Afterburn, and keep pressure on a burning opponent without following them into danger. Use Napalm to slow a target, Flame Dash to move or lay a damaging trail, and Concussive Combustion when a delayed area stun can help your team. His damage continues over time, so a successful trade does not always require chasing until the target falls.

Check the hero database and community builds for current details. This guide uses the community-maintained game asset data captured October 28, 2026, and dated Valve updates; it is not a live-client test. Read the current in-game descriptions before relying on exact values.

Abilities and upgrade priorities

These are the four standard abilities assigned to Infernus in the asset snapshot. Older guides may call Napalm Catalyst and describe different upgrades.

• Napalm deals spirit damage, slows and coats targets, increasing the damage they take from Infernus. Its upgrades add a charge, lifesteal against coated targets, and finally more damage taken from Infernus plus healing reduction. The healing reduction is a final-tier effect, not a base effect. Use the slow to make follow-up shots easier, but do not assume a coated target must remain in range.
• Flame Dash moves Infernus forward, gives slow resistance and leaves a trail that deals spirit damage over time. Holding forward during it extends the dash. Its upgrades reduce cooldown, improve the trail, and eventually enable two charges. Slow resistance is not immunity to control or damage; consider where the dash ends before using it.
• Afterburn builds a burn through weapon hits and deals spirit damage over time once applied. Melee hits can also contribute to buildup. Abilities refresh an active burn to its base duration; weapon hits extend it. Its upgrades increase damage, reduce the burning target’s spirit damage output, and increase maximum burn duration. Valve’s March 6 update describes the distinction between base refresh and extended duration.
• Concussive Combustion makes Infernus a delayed bomb that damages and stuns nearby enemies. Once cast it cannot be interrupted, according to the asset description; that does not make him immune to damage or control. Upgrades add damage, reduce cooldown and grant explosion lifesteal, then increase stun duration and radius. Its delay means enemies can move before it detonates.

For a starting priority, consider Afterburn when you can hold a target in your sights for sustained shots. Choose Napalm upgrades if extra availability or the later anti-heal helps the fights you are taking. Favor Flame Dash when trail pressure, repositioning or additional charges solve your problem. Invest in Concussive Combustion when coordinated fights give you reliable opportunities to reach enemies during its delay. Read the next tier in the client: these are conditional priorities, not a universal order.

Build and maintain Afterburn

Afterburn builds through weapon and melee hits; a single shot is not the same as an applied burn. Choose a target you can see long enough to land a sequence of shots, ideally from a position that leaves cover nearby. Napalm can slow that target to make the exchange easier. Once the burn is active, further weapon hits extend it and abilities refresh it to the base duration; do not confuse an ability refresh with an unlimited extension. The community wiki also describes Afterburn buildup and its interactions, but the October 28 asset snapshot remains the source for the ability text here.

Should I chase every burning target? No. The remaining damage is not a guaranteed kill, and using Flame Dash to pursue can remove an escape option. Continue only when the route and enemy positions make the follow-up worthwhile.

When the firing window closes

If the target breaks sight or you run out of ammunition before applying the burn, stop the trade and find a safer firing angle. A reload in the open can give the opponent time to retaliate.

Take a lane trade

Before trading, check your firing window: Do you have ammunition for repeated hits, a target exposed long enough to shoot, and nearby cover if the enemy returns fire? If not, wait for a better angle rather than spending movement to force it.

1. Wait until the enemy steps out to contest a trooper and you have a clear firing angle.
2. Apply Napalm if the target is in reach, then land sustained shots to build Afterburn.
3. If the opponent returns fire or an enemy teammate approaches, break sight and reassess. A burning target may continue taking damage while you move to safety.
4. Use Flame Dash to change position when you need it; spending it purely to follow a retreating opponent can leave you without the same escape option.

This is an example, not a guaranteed kill or a fixed timing.

Set up the delayed explosion

In a contested fight, identify a group your allies can reach and a route that does not leave you isolated. Cast Concussive Combustion when you can remain near worthwhile targets through its delay, then use the stun to help allies land their damage. Flame Dash may help reposition or lay a trail, but check its destination and the enemy’s response. If opponents leave the area before the explosion, return to shooting or cover instead of pursuing the entire group.

Lane, farming and fight participation

In lane, secure trooper souls while looking for a shot angle that does not expose you to both opponents. Use Napalm to support a trade rather than spending it every time it is available. If repeated return fire forces you away from the wave, a health or recovery purchase may let you contest more safely than another damage item.

After lane, clear a wave when safe and take nearby camps when there is time before the next team commitment. Flame Dash’s trail and weapon pressure can help clear clustered targets, but using your movement ability on a camp has an opportunity cost if an enemy arrives. Check the map and avoid committing to an exposed camp with no safe exit. For general resource priorities, see souls in Deadlock.

In team fights, shoot from the side of your frontline where you can maintain an angle on a target. Spread pressure when safe, but finish applying a burn before switching targets if that is the better opportunity. Your job is not to stand in the center indefinitely: use a trail to influence a route, choose an ultimate target your team can follow, then move back when your health or position deteriorates.

Choose items for your firing window

These are conditional examples from the October 28 community item snapshot, not a proven best build. Check current item descriptions and prices in the shop.

Need	Example	Why consider it
More room to land weapon hits	Extended Magazine	More ammunition can make it easier to sustain fire before a reload. It cannot compensate for a target you cannot see or safely reach.
Faster weapon pressure	Rapid Rounds or Swift Striker	Fire-rate investment can help deliver shots; choose survivability first if you are eliminated before a trade develops.
Additional spirit damage pressure	Mystic Vulnerability	Spirit damage reduces the target’s spirit resistance. Consider it when you can maintain damage on a useful target.
Enemy healing is a problem	Toxic Bullets	Weapon hits build a separate bleed that reduces incoming healing. This is an item effect, separate from Afterburn and Napalm’s final upgrade.
Enemies group and you can shoot safely	Ricochet	Bullets bounce to nearby enemies and apply bullet procs. It is a costly commitment, so compare it with the defense you would delay.
The first control or spirit burst stops you	Reactive Barrier or Spirit Shielding	Reactive Barrier triggers on listed control effects; Spirit Shielding triggers after significant spirit damage from enemy heroes. Choose for the threat actually ending your fights.

Spirit Lifesteal is another sustain option when your spirit damage is connecting, but enemy healing reduction and concentrated burst can still force a retreat. Enduring Speed can reduce movement-speed penalties, although it does not make Flame Dash a safe entry into a prepared team. See adapting builds for the broader decision process.

Matchups and mistakes

Against long-range pressure such as Vindicta, use cover to shorten the distance rather than chasing across open ground. If a target can retreat behind terrain before you land enough hits, switch to a more accessible opponent or protect your own wave. Against close-range initiators such as Abrams or Mo & Krill, track their approach and keep a route to teammates. Flame Dash provides slow resistance, but a planned escape is still vulnerable to the wrong position or enemy control.

Respect healing reduction when relying on lifesteal: it changes how long you can stay in a trade. Napalm’s own healing reduction requires its final upgrade.