Key takeaways
- Boss fights with large health pools and high armor — Poison first, Burn second.
- Long wave stages where you cannot burst a target down in one rotation.
- Never against enemies with a heal-per-second aura; the tick gets out-healed and wastes a slot.
Every debuff in Clash of Critters falls into one of six functional families — damage over time, control, stat reduction, amplification, anti-heal, and utility lockout — and each family is beaten by a different answer, which is why a single “best cleanse” pick never fixes a debuff problem on its own. Below is the full breakdown: what each effect does, how long it lasts, whether it stacks, what removes it, and the exact situations where it earns a slot on your team.
One caveat before the numbers: the values below are the baseline these effects are built around. Balance patches nudge durations by a second or a few percentage points, and most effects scale slightly with the level of the unit applying them. Treat them as the numbers you plan around, not gospel.
The Six Debuff Families at a Glance
| Family | Example effects | Typical base duration | Stacks? | Removed by | Strongest against |
|---|---|---|---|---|---|
| Damage over time | Burn, Poison, Bleed | 4–6 s | Poison yes (up to 5), Burn/Bleed no | Cleanse, heal-over-time | High-HP bosses and shielded tanks |
| Control | Stun, Freeze, Root, Slow | 1.5–3 s | No — diminishing returns instead | Control immunity, tenacity | Glass-cannon backlines and channelers |
| Stat reduction | Weaken, Armor Shred, Blind | 5–8 s | Shred yes (up to 3) | Cleanse, stat reset | Bruiser comps and defense-stacking teams |
| Amplification | Mark, Vulnerability | 6–10 s | No — refreshes instead | Nothing; must be outlasted | Setting up burst windows |
| Anti-heal | Heal Block, Grievous Wound | 5 s | No | Cleanse, one oversized heal | Sustain and double-healer comps |
| Utility lockout | Silence, Taunt | 2–4 s | No | Cleanse, repositioning | Ability-reliant units and casters |
Damage Over Time: Burn, Poison, Bleed
Burn is the straightforward one: a flat damage tick per second, no stacking, and it refreshes its duration rather than adding damage when reapplied. It ignores defense, which is what makes it good against armored targets, but it does not scale with the target’s HP, so it fades in relevance against late-game bosses.
Poison is the stacking DoT and the single best answer to a boss with a huge health pool. Each new application adds a stack up to five, and each stack adds roughly 20% to the total tick damage, so five stacks is about double the output of one. Because the damage is a percentage of max HP rather than a flat number, Poison gets stronger exactly as the enemy does.
Bleed sits between the two: it ticks on movement or on the target’s own actions, so it punishes aggressive enemies and does almost nothing to a passive one. Against a boss that attacks constantly, Bleed out-damages Burn. Against a stationary target, it is close to dead weight.
When to bring a DoT
- Boss fights with large health pools and high armor — Poison first, Burn second.
- Long wave stages where you cannot burst a target down in one rotation.
- Never against enemies with a heal-per-second aura; the tick gets out-healed and wastes a slot.
Control Effects: Stun, Freeze, Root, Slow
Control is the most misunderstood family because of diminishing returns. A first Stun lasts its full 1.5–2 seconds. A second Stun on the same target within about 12 seconds lasts roughly half as long, and a third grants the target a short immunity window — typically 6–8 seconds where control simply does not land. Chaining two stunners back to back is therefore usually worse than spacing them out.
Freeze is the exception worth knowing: it behaves like a Stun but breaks early if the target takes a large hit, so it is a setup tool for a burst window, not a damage-phase tool. Root stops movement but not attacks, which makes it useless against ranged units and excellent against melee chargers. Slow is the weakest individually and the most reliable in practice, because it has no immunity mechanic — it just gets capped at roughly 50% total reduction no matter how many sources you stack.
Stat Reduction: Weaken, Armor Shred, Blind
Weaken cuts attack power by around 25% for 6 seconds and does not stack; a second application refreshes the timer. It is the cheapest way to survive an enemy burst phase, and it is the correct pick when your carry is dying before it acts.
Armor Shred is the opposite investment: it stacks up to three times at roughly 15% defense reduction each, so a full stack is close to a 45% armor cut, and it multiplies your entire team’s damage rather than just one unit’s. In wave content with bulky enemies, Shred usually outperforms every DoT in the game on raw time saved.
Blind reduces accuracy for 5–8 seconds. It is high variance — great against a single heavy hitter, nearly worthless against fast multi-hit attackers, since the misses average out across many small attacks.
Stacking Rules That Decide Most Fights
| Effect | Max stacks | Reapplication behavior | Immunity / cap |
|---|---|---|---|
| Burn | 1 | Refreshes duration, no damage gain | None |
| Poison | 5 | Adds a stack, ~+20% total DoT each | None |
| Bleed | 2 | Adds a stack only if from a different source | None |
| Armor Shred | 3 | Adds a stack at ~15% DEF each | None |
| Slow | 2 | Strongest applies, second adds half value | ~50% total slow cap |
| Stun / Freeze | 1 | Refreshes, then triggers diminishing returns | 6–8 s immunity after 2–3 applications |
| Silence | 1 | Refreshes duration | ~6 s immunity after expiry |
The practical rule: stack-independent effects (Poison, Armor Shred, Bleed from separate sources) reward bringing multiple units with the same effect. Refresh-only effects (Burn, Weaken, Mark) reward bringing one unit and spending the other slots elsewhere.
Counters: What Actually Removes What
- Cleanse effects strip DoTs, stat reductions, anti-heal, and Silence in one cast. They do not remove Mark or Vulnerability — those have to expire.
- Tenacity / resistance stats reduce the chance a debuff lands at all, and often shave duration too. They are the better investment against control, because a cleanser that is itself stunned cannot cast.
- Immunity windows are the counter to control chains. Pre-casting immunity before an enemy’s known stun timing beats reacting to it.
- Heal-over-time is the counter to Burn specifically, since it outpaces a flat tick but not a five-stack Poison.
Which Debuff to Prioritize, by Situation
| Your problem | Priority debuff | Why | Fallback |
|---|---|---|---|
| Boss with a huge single health bar | Poison (5 stacks) | Percent-of-HP ticks ignore armor and scale with the boss | Armor Shred |
| Enemy healer out-sustaining your damage | Heal Block | Cuts effective regen instead of racing it | Mark + burst |
| Your team dies before it acts | Slow or Freeze | Buys a full turn of positioning | Tenacity gear |
| Enemy one-shots your carry | Weaken | Flat attack cut survives burst better than extra healing | Taunt |
| Long multi-wave stages | Armor Shred | Multiplies the whole team’s damage, not one unit’s | Bleed on aggressive enemies |
| Caster-heavy enemy team | Silence | Removes the ability entirely rather than reducing it | Stun on the channeler |
FAQ
Do two units applying the same debuff stack it?
Only for effects marked as stack-independent — Poison, Armor Shred, and Bleed from separate sources. Burn, Weaken, Mark, and Silence refresh rather than stack, so a second source adds nothing but consistency.
Does tenacity reduce duration or the chance to land?
Usually both, but the chance reduction matters more. A debuff that never lands costs the enemy a full ability; a debuff with halved duration still does half its job.
Are bosses immune to control?
Not outright, but most boss-type enemies carry built-in diminishing returns and shorter immunity windows than standard units, which is why control-heavy teams stall against them and damage-over-time teams do not.
If you take one thing from this: build around stack-independent effects for long fights, refresh-only effects for short ones, and always check whether your answer is a cleanse, a resistance stat, or pure timing — because in Clash of Critters those three are not interchangeable.
