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// item · risk of rain 2

Unstable Tesla Coil, in depth.

Legendary item (red). What the game says, what it really does, what each copy adds and what it pairs with.

// what it does

What it does.

Unstable Tesla Coil
Legendary item (red)

You fire constant lightning at 3 nearby enemies; it switches off every 10 s and comes back. Each extra coil, 2 more enemies.

Game text: «Fire out lightning that hits 3 (+2 per stack) enemies for 200% base damage every 0.5s. The Tesla Coil switches off every 10 seconds.»

Stacking: Each coil, 2 more targets.

// per copy

What each copy adds.

1 copy2 copies3 copies5 copies10 copies
3571121

Each copy adds the same.

// pairs with

What it pairs with.

Engineer

turrets get it too: three coils.

Focus Crystal

the lightning is close-range: more damage.

// how to get it

How to get it.

Drops from legendary chests and, less often, from large and small chests.

Needs unlocking first with the challenge «Macho».

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// faq

FAQ.

What does Unstable Tesla Coil do in Risk of Rain 2?

You fire constant lightning at 3 nearby enemies; it switches off every 10 s and comes back. Each extra coil, 2 more enemies.

What happens if you pick up several Unstable Tesla Coil?

Stacking: Each coil, 2 more targets.

How do you get Unstable Tesla Coil?

Drops from legendary chests and, less often, from large and small chests. Needs unlocking first with the challenge «Macho».

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Sources: the game's English text (name and description), the Risk of Rain 2 wiki (riskofrain2.wiki.gg: this item's page, read on 31 October 2026; numbers, stacking formula and notes) and the wiki's survivor pages. The plain-words text and the synergies are ours. Icons: Risk of Rain 2 (Hopoo Games / Gearbox).