Coldchain

This article is in need of research. You can help out by editing this article or discussing your findings on the talk page. The editor who added this notice elaborates: Confirm the shard targeting

Coldchain

Ice Combo attack first slows targets, then causes Bloons to slow other nearby Bloons, then will produce freezing shrapnel from the target.

Tower	Skywarden — Path 3 — Tier 3
XP cost	2,750
Cash cost	$1,275 — Easy $1,500 — Medium $1,620 — Hard $1,800 — Impoppable

← Icebore

Frozen Verdict →

Coldchain is the Skywarden's path 3 tier 3 upgrade in Bloons TD 6. This upgrade causes its projectiles to apply a slowing effect to the first Bloon each one deals damage to, reducing their movement speed by 25% for 3 seconds. MOAB-Class Bloons do not move slower, and the duration does not refresh on Bloons already slowed by it, but these still count as the first Bloon hit. This upgrade also unlocks the Ice Combo:

1. All Skywardens with this upgrade, Frozen Verdict, or Winter's Mercy apply a circling blue mark to all Bloons they deal damage to, which lasts for 2 seconds. If they damage a Bloon that already has a mark, it refreshes the duration and advances the combo. All projectiles that hit affected Bloons consume one less pierce (effectively losing zero pierce, unless they have pierce penalties or hit Bloons that consume extra pierce), including projectiles from other towers.
2. Starting on the third hit, each arrow reduces the speed of all other Bloons within an 8-unit radius of the affected Bloon by 20%.
3. Starting on the fourth hit, each arrow spawns two shrapnel projectiles, which move in a straight line from the point of impact towards the two closest Bloons in a 300 unit radius. These projectiles have 3 pierce, deal 3 Frigid-type damage and +3 damage to frozen Bloons, and have a 35% chance to freeze non-MOAB-Class Bloons for 1.5 seconds (affecting all layers).

Stats

This section was last updated for: version 56.3

This section is incomplete. You can help out by expanding it. The editor who added this notice elaborates: Missing crosspath interactions

Tower
Display range 48 units Footprint radius 6 units Targeting options First Last Close Strong

Attack
Cooldown 1.55s Offset (X, Y, Z) -0.8, 18.3, 7 Targeting Depends on targeting option Targeting range 48 units Filters Cannot target Camo
Projectile Random angle 3° Pierce 6 Damage 1 Damage to frozen +1 Damage type Sharp Speed 450 units/s Acceleration -20 units/s2 Max travel distance 75 units Lifespan 0.16s Radius 2 units Filters Cannot hit Camo Buff Immunity override Frozen Effect Damage to frozen +7 Ice combo - Slow effect Multiplier ×0.75 Duration 3s Ice combo - Pierce effect Duration 2s Pierce consumption -1 Ice combo - Slow zone Radius 8 units Speed multiplier ×0.8 Ice combo - Shrapnel Count 2 Pierce 3 Damage 3 Damage to frozen +3 Damage type Frigid Speed 450 units/s Seeking distance 300 units Lifespan 0.08s Radius 2 units Filters Cannot hit Camo Freeze Multiplier ×0 Duration 1.5s Chance 35% Layers ∞

Attack speed buff
Attack speed modifier per stack +5% Max. stacks 10 Lifespan 2s
Applies to self

Pierce buff
Pierce modifier ×1.5 Lifespan 1.0s
Applies to self

Notes:

• The +7 damage bonus to frozen is only applied to Blue, Green, Yellow and Pink Bloons.

Costs and sell values

Note: this list does not factor in Monkey Knowledge or other discounts.

Tiers	Total cost				Sell value
	Easy	Medium	Hard	Impoppable	Easy	Medium	Hard	Impoppable
0-0-3	$1,790	$2,105	$2,270	$2,525	$1,253	$1,474	$1,589	$1,768
1-0-3	$1,885	$2,215	$2,390	$2,655	$1,320	$1,551	$1,673	$1,859
2-0-3	$2,070	$2,430	$2,620	$2,915	$1,449	$1,701	$1,834	$2,041
0-1-3	$1,940	$2,280	$2,460	$2,735	$1,358	$1,596	$1,722	$1,915
0-2-3	$2,175	$2,555	$2,755	$3,065	$1,523	$1,789	$1,929	$2,146

Strategy

This section was last updated for: version 56.3

Coldchain in dense groups is a powerful T3 in Silas strategies when combined with additional Ice defense, at minimum needing Icicles and Embrittlement to create enough Frozen Bloons to trigger as well as dealing with mid-game rushes and DDTs. With this setup, it only struggles at single-target damage, which is compensated by those specialists such as First Strike Capability.

Outside of ice strategy, Coldchain can be used as a support for strategies that need more help with Bloon cleanup. Bloons affected by the Ice Combo essentially consume no pierce, making Ceramic rushes easier to handle. However, Coldchain struggles in the early-game and must be combined with otherwise self-sufficient defenses to make the cleanup assistance work.

1-0-3 is an important crosspath to improve its coverage on maps that demand range, with 2-0-3 being useful for innate camo detection and/or when the range boost sidegrade is necessary. 0-2-3 loses full piercing projectiles in exchange for blasts, which makes it less consistent at straight directions, but allows it to ignore obstacles and gain pierce from attacking further away.

Update history

For a complete list of Skywarden changes, see Update history:Skywarden (BTD6).

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Version 56.2

•  Freezing Shrapnel: Resolved an issue where it was producing more projectiles than intended; it is now limited to 2 shards (bug fix)
•  Freezing Shrapnel: The shards now target the two closest Bloons in range instead of moving in the overall direction of the arrow (undocumented)
•  Ice Combo: The first two stages of the combo no longer slow down MOAB-class Bloons incorrectly (bug fix)
  • Note: Speed multiplier was incorrectly set to 0× instead of 1× for the first two stages of the combo. X-X-4 Frozen Verdict unchanged (0.95× and 0.9×)

Gallery

For more Skywarden images, see Gallery:Skywarden.

Screenshots

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Assets

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In other languages

This section was last updated for: version 56.0

Name

Language	Text	Notes
Arabic	السلسلة الباردة	—
Danish	Kuldekæde	—
German	Kältekette	—
Spanish	Cadena de Frío	—
Spanish (Latin America)	Cadena de Frío	—
Finnish	Kylmäketju	—
French	Chaîne du Froid	—
Italian	Catena del Freddo	—
Japanese	コールドチェーン	—
Korean	콜드체인	—
Dutch	Koudeketen	—
Norwegian	Kuldekjede	—
Polish	Łańcuch Chłodu	—
Portuguese (Brazil)	Corrente Fria	—
Russian	Холодная цепь	—
Swedish	Köldkedja	—
Thai	โซ่แห่งความเย็น	—
Turkish	Soğuk Zinciri	—
Chinese (simplified)	寒冰之链	—
Chinese (traditional)	寒冰之鏈	—

Description

Language	Text	Notes
Arabic	هجوم متتابع للجليد يبطئ الأهداف أولاً، ثم يتسبب في قيام البالونات بإبطاء البالونات الأخرى القريبة، ثم ينتج شظايا تجميد من الهدف.	—
Danish	Is-kombinationsangreb sløver først mål, får derefter Bloons til at sløve andre nærliggende Bloons, og vil derefter producere frysende splinter fra målet.	—
German	Der Eis-Kombiangriff verlangsamt zuerst Ziele, sorgt dann dafür, dass Bloons andere nahegelegene Bloons verlangsamen, und erzeugt schließlich gefrierende Splitter aus dem Ziel.	—
Spanish	El ataque combo de hielo ralentiza primero a los objetivos, luego hace que los Bloons ralenticen a otros Bloons cercanos y, por último, genera metralla congelante desde el objetivo.	—
Spanish (Latin America)	El ataque combo de hielo ralentiza primero a los objetivos, luego hace que los Bloons ralenticen a otros Bloons cercanos y, por último, genera metralla congelante desde el objetivo.	—
Finnish	Jääyhdistelmähyökkäys hidastaa ensin kohteita, saa sitten bloonit hidastamaan muita lähellä olevia blooneja ja tuottaa lopulta jäädyttäviä sirpaleita kohteesta.	—
French	L'attaque combo de glace ralentit d'abord les cibles, puis pousse les Bloons à ralentir les autres Bloons proches, et génère enfin des éclats givrants depuis la cible.	—
Italian	L'attacco combo di ghiaccio prima rallenta i bersagli, poi fa sì che i Bloon rallentino gli altri Bloon vicini, infine produce schegge congelanti dal bersaglio.	—
Japanese	氷のコンボ攻撃は、まずターゲットを減速させ、次にブルーンに近くの他のブルーンを減速させ、最後にターゲットから凍結する破片を発生させる。	—
Korean	얼음 콤보 공격은 먼저 대상을 감속시킨 다음, 풍선이 근처의 다른 풍선을 감속시키게 하고, 마지막으로 대상으로부터 얼어붙는 파편을 생성합니다.	—
Dutch	Ijscombo-aanval vertraagt eerst doelwitten, zorgt er vervolgens voor dat bloons andere nabijgelegen bloons vertragen, en produceert daarna bevriezende scherven vanuit het doelwit.	—
Norwegian	Iskombinasjonsangrep bremser først mål, får deretter Bloons til å bremse andre nærliggende Bloons, og vil deretter produsere frysende splinter fra målet.	—
Polish	Atak kombinacji lodu najpierw spowalnia cele, następnie sprawia, że Bloony spowalniają inne pobliskie Bloony, a na koniec tworzy zamrażające odłamki z celu.	—
Portuguese (Brazil)	O ataque de combo de Gelo primeiro reduz a velocidade dos alvos, depois faz com que os Bloons reduzam a velocidade de outros Bloons próximos e, por fim, produz estilhaços congelantes a partir do alvo.	—
Russian	Комбо-атака льда сначала замедляет цели, затем заставляет шары замедлять другие шары поблизости, а после создает замораживающие осколки из цели.	—
Swedish	Iskombinationsattack saktar först ner mål, får sedan Bloons att sakta ner andra närliggande Bloons, och kommer sedan att producera frysande splitter från målet.	—
Thai	การโจมตีคอมโบน้ำแข็งจะทำให้เป้าหมายเคลื่อนที่ช้าลงก่อน จากนั้นจะทำให้ลูกโป่งทำให้ลูกโป่งตัวอื่นที่อยู่ใกล้เคียงช้าลงด้วย แล้วจึงสร้างเศษเสี้ยวน้ำแข็งแช่แข็งออกจากเป้าหมาย	—
Turkish	Buz Kombo saldırısı önce hedefleri yavaşlatır, ardından Balonların yakındaki diğer Balonları yavaşlatmasını sağlar ve daha sonra hedeften dondurucu şarapnel üretir.	—
Chinese (simplified)	冰霜组合攻击首先减速目标，然后使气球减速附近的其他气球，最后从目标身上产生冰冻碎片。	—
Chinese (traditional)	冰霜組合攻擊首先減速目標，然後使氣球減速附近的其他氣球，最後從目標身上產生冰凍碎片。	—