Apex Legends Caustic character guide: How to poison your enemies with the toxic trapper

Apex Legends Caustic

If you want to take Apex Legends Caustic into the battle royale, then as with Mirage you'll need to cash in some Legend tokens in order to unlock him. It's worth adding this bad boy to your roster though, as you can set poison traps for your Apex Legends enemies before luring them into your ambush – temporarily messing up their vision as well as dealing damage to them over time. If you want to succeed as Apex Legends Caustic, then we've got all the information you need.

Because Caustic is a very thicc boy, thanks to all that gear he always seems to be carrying around, he has a passive that’ll help negate damage by 15%. This passive is called Fortified, and was introduced by Respawn to help combat against his incredibly big hitbox.

We've also got an overview of all the best Apex Legends characters, along with detailed guides for each one individually below.

Apex Legends Bangalore | Apex Legends Bloodhound | Apex Legends Crypto | Apex Legends Gibraltar | Apex Legends Lifeline | Apex Legends Loba | Apex Legends Mirage | Apex Legends Octane | Apex Legends Pathfinder | Apex Legends Revenant | Apex Legends Wattson | Apex Legends Wraith

Apex Legends Caustic abilities & ultimate explained

Apex Legends Caustic ultimate & abilities

As with all Legends, Caustic has three abilities; a passive, tactical, and ultimate. Usually we'd look at the passive first, but that only works with his other two abilities, so let's start with the tactical.

Nox Gas Trap is the name of Caustic's tactical ability, and it's quite self-explanatory as to how it works. You can throw down up to six gas canisters that trigger when enemies are close enough to it. Noxious gas is then emitted, dealing four damage per tick to any enemies inside the gas. These are great when placed behind doors or inside rooms, but they can also be destroyed by enemies if they shoot the very bottom red panel.

As for Caustic's ultimate, it's very similar to his tactical, but instead it's a Nox Gas Grenade. The gas does the same effect, but it covers a larger area and can be thrown further. The animation takes a while to complete and it still can't be lobbed as far as a standard grenade though, so it's very situational.

What about Caustic's passive? That's easy; Caustic automatically gains Nox Vision, which means any enemies inside his noxious gas have an outline. It's very hit and miss though because if you can trap enemies inside a room full of gas, they don't stand a chance... but setting that up is not easy. As soon as someone is caught in the toxic gas, their instant reaction is to flee for a way out.

One aspect that isn't mentioned with Caustic however is that while the gas only damages enemies, it still slows down and blinds teammates. You also need to be careful with gas trap placement to ensure you don't block teammates' paths. Caustic is great in close quarters combat - especially at Bunker - but otherwise, he's a tough Legend to get the hang of.

How to play Caustic in Apex Legends - Tips & tricks

Apex Legends Caustic gas traps

  • Throw down the Nox Gas Grenade inside Bangalore's smoke - Bangalore is a great Legend to partner up with Caustic, because she can fire smoke grenades frequently. While you can't see through her smoke, if you have gas inside her smoke then your Nox Vision will come into play, so enemies are blinded by two types of smoke, but you can see them perfectly.
  • Hide gas traps in corners - The main way you're going to get people with the gas traps is if you hide them in corners, so they trigger without the enemy realising they're there. In buildings, throw them down in corners then if you have someone inside a room with a gas trap, throw down some more in front of the doors so they literally have no way out.
  • Don't block doors if your teammates need to come through there - Seriously. There is nothing worse than a trap-happy Caustic who throws down constant traps in front of doors when there's no enemies about and their teammates are looting. Learn when and where to place traps, and don't impede your pals.

How does the Caustic hitbox compare to other Legends?

Right now, Caustic has one of the largest hitboxes in the game, which makes him an easy target. The only bigger hitbox is Gibraltar, but he has a gun shield and is a much more defensive character to counteract that. Worry not though, because Respawn has confirmed that Caustic's hitbox - along with Pathfinder and Gibraltar - would be reduced when Season One of the Apex Legends battle pass launched. We go into more detail on this in our Apex Legends hitboxes guide, but for now be aware that Caustic is a thicc boi.

Apex Legends Caustic voice actor - JB Blanc

JB Blanc - Apex Legends Caustic voice actor

JB Blanc is the voice actor for Caustic, and the one behind all those evil voice lines. If you recognise him, that may be because he also voices Commander Blisk in Titanfall 2, Bane in Batman: Arkham Origins, Moneybags in Spyro Reignited Trilogy, and Diablo in Diablo 3.

When you get the hang of utilising Caustic's traps, he can become a seriously powerful Legend, but you'll need to practice with him first. Good luck!

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Ford James

Give me a game and I will write every "how to" I possibly can or die trying. When I'm not knee-deep in a game to write guides on, you'll find me hurtling round the track in F1, flinging balls on my phone in Pokemon Go, pretending to know what I'm doing in Football Manager, or clicking on heads in Valorant.