Poison Spell Guide: Best Decks, Tower Nerf and Counters

By Clash World · Cards · Oct 22, 2016 · Updated Oct 8, 2026

AI Overview: Poison, also called the Poison Spell, is a 4-elixir Epic spell in Clash Royale, unlocked in Arena 9. It damages troops and buildings over time, with reduced damage to Crown Towers. RoyaleTracker listed its best deck at 68.6% win rate in October 2026, and four Graveyard Poison lists won 59.7% to 64.6%. SeeMeta lists one cut: Crown Tower damage fell 8.7% on June 1.

Last Updated: October 2026

Key Points:

• Poison costs 4 elixir, is an Epic spell, and unlocks in Arena 9 (Jungle Arena).
• It damages troops and buildings over time, with reduced damage to Crown Towers.
• SeeMeta lists one 2026 change: Crown Tower damage went from 184 to 168 (-8.7%) on June 1.
• RoyaleTracker’s best Poison deck won 68.6% over about 3,800 battles.
• It has no Evolution or Hero version.

What Poison Does

The short version: Poison is a 4-elixir Epic spell. It covers an area in toxin and damages enemy troops and buildings over time, with reduced damage to Crown Towers. RoyaleTracker lists it as unlocking in Arena 9 (Jungle Arena).

It is a slow spell. You place it early, and it keeps hurting whatever stays inside the area.

Poison and Rocket both lost Crown Tower damage on June 1. If more spells get the same cut, decks that count on a spell for the last bit of tower damage will need a second finisher. The negative effect: slow decks lose reach, and games that used to end with a spell will drag on.

Best Poison Decks Right Now

RoyaleTracker tracked 8 decks with Poison in October 2026 and printed all eight. The top deck won 68.6%.

The pattern: four of the eight printed lists are Graveyard Poison, and they won between 59.7% and 64.6%. The two lists that run both Rocket and Poison won 51.8% and 46.3%. What it means: Poison wins with Graveyard and Tornado, and it does not win as the second spell next to Rocket.

Try it yourself: open the Clash Royale Deck Builder with the Rocket Poison build in the table above, 51.8% in the tracker sample (1,300 battles), already loaded. It averages 3.4 elixir and runs Poison next to Rocket. Swap Rocket for Graveyard to compare it with the Graveyard lists above.

How to Play Poison

1. Aim at the troops, not the tower. Poison does reduced damage to Crown Towers, so use it on what defends the tower.
2. Place it early. It damages over time, so the longer troops stay inside, the more they lose.
3. Pair it with Tornado. Six of the eight printed lists carry Tornado, which pulls troops into the toxin.
4. Skip lone cheap troops. At 4 elixir, Poison should hit two troops or more.
5. Use it with Graveyard. All four Graveyard lists run Poison and Graveyard together.

The move: next game, wait for the opponent to place two or more troops behind a tank, then drop Poison on them before the push crosses the bridge.

For more, read our Poison guide.

Poison is the spell of choice in the strongest printed lists, so it may be next in line for a change if Graveyard keeps winning. The negative effect: any nerf to Poison hits the whole Graveyard archetype, and players who spent shards on the Evolutions in those lists would feel it first.

How to Counter Poison

• Spread your troops: a swarm in one spot gets cleared, so split them or play them one at a time.
• Walk out of the area: troops that leave the toxin keep the health they have left.
• Use big tanks: a Golem or Giant has so much health that Poison does little to it.
• Bait it: a cheap card can pull the Poison, and you punish with a bigger push while they recover elixir.

The catch: you cannot kill a spell. You play around it, and low-health troops should not stand still in one place.

Is Poison Worth Using Now?

Is it worth it? Yes, in Graveyard decks. Four Graveyard Poison lists won 59.7% to 64.6%, and the top Poison deck won 68.6%. The June 1 cut changes what Poison does to a tower, not what it does to troops.

What to remember: Poison is a troop-clearing spell first and a tower spell second.

Poison lists stay strong while Poison keeps its damage on troops. If Supercell ever trims that damage instead of the tower damage, Graveyard decks would feel it first. The negative effect: a cut to troop damage would break the Poison and Tornado cycle, and lists that win 59.7% to 64.6% today could fall below 50% in one patch.

Go deeper: For the spell matchup, read Lightning or Poison? Best Decks for Each Spell and the Giant Graveyard deck guide. Want to try a version of your own? Add cards in the Clash Royale Deck Builder and watch the average elixir change.

Frequently Asked Questions

What does Poison do in Clash Royale?

It covers an area in toxin and damages troops and buildings inside it over time.

How much does Poison cost?

4 elixir.

When do you unlock Poison?

In Arena 9 (Jungle Arena), according to RoyaleTracker. It is an Epic spell.

What is the best Poison deck?

In October 2026, RoyaleTracker listed an Evo Cannon and Evo Bats deck at 68.6% over about 3,800 battles, and four Graveyard Poison lists at 59.7% to 64.6%.

Does Poison do full damage to towers?

No. RoyaleTracker’s card text says reduced damage to Crown Towers, and SeeMeta lists Crown Tower damage going from 184 to 168 on June 1, 2026.

How do you counter Poison?

Spread troops, walk out of the area, use big tanks and bait it with a cheap card.

The Bottom Line

The takeaway: Poison clears troops over time and works best in Graveyard decks. Use it on groups, not on the tower.

Building around this card? Our guide on how to use the Clash Royale Deck Builder shows how to load a deck, check patch risk and copy it into the game.

Sources

Researched from the following (no links, listed for transparency):

• RoyaleTracker, Poison card page (October 2026 tracker data)
• RoyaleTracker, best decks with Poison (October 2026 tracker samples)
• SeeMeta, Clash Royale balance changes 2026 (page updated October 8, 2026)
• Clash Royale card data used by the Deck Builder (elixir costs and card types)