Swelling Spikes

Swelling Spikes

Common	Spike Factories attack half as fast, but have 115% more pierce. Adds a 1-0-1 Spike Factory to your Party
Rare	Spike Factories attack half as fast, but have 120% more pierce. Adds a 2-0-1 Spike Factory to your Party
Legendary	Spike Factories attack half as fast, but have 135% more pierce. Adds a 2-0-0 Spike Factory to your Party
Hero parties	—
Introduced	Version 47.0

Swelling Spikes is a type of Artifact in the Rogue Legends DLC for Bloons TD 6. It increases the pierce of Spike Factories (amount of spikes on a stack) by a significant amount but in exchange it halves the production rate. In general all rarities of the Artifact increase the overall spike production and the pierce bonus increases with the rarity of the Artifact. It also adds a 1-0-1 / 2-0-1 / 2-0-0 Spike Factory to the Party. The player unlocks the Common variant by default.

Stats

Rarity	Attack speed penalty	Attack cooldown multiplier	Pierce bonus	Spike production boost
Common	−50%	2.0×	2.15×	+7.5%
Rare	−50%	2.0×	2.20×	+10%
Legendrary	−50%	2.0×	2.35×	+17.5%

Tips

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This article was last updated for: version 51.2

A useful boost for any Spike Factory, although the attack speed penalty is harsh, it can be mitigated by any other Artifacts that boost attack speed like Quickening or Support Specialist. Also it is recommended to put the Spike Factories at the end of the track and using any type of stalling to let them build a spike piles while the Bloons travel across the map.

Top (until Spiked Balls), middle, and bottom path Spike Factories benefit the most from this artifact, however, players using Spiked Mines or Super Mines should be careful while using this Artifact in combination a very high amount of pierce buffs because, if the pierce is too high, Bloons will not be able to consume all the pierce of the mine before the round ends to trigger their powerful explosions, and in very late stages on CHIMPS, some MOAB-Class Bloons will be able to just pass over the mines without causing any explosions.

Update history

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In other languages

Language	Text	Notes
Arabic	مسامير منتفخة	—
Danish	Hævede søm	—
German	Anschwellende Nadeln	—
Spanish	Clavos hinchados	—
Spanish (Latin America)	Púas hinchadas	—
Finnish	Iskevät piikit	—
French	Herses augmentées	—
Italian	Aculei affilati	—
Japanese	ふくらむスパイク	—
Korean	커지는 스파이크	—
Dutch	Stevige stekels	—
Norwegian	Bulende spiker	—
Polish	Kłujące kolce	—
Portuguese (Brazil)	Espinhos Inchados	—
Russian	Наточенные шипы	—
Swedish	Svällande spikar	—
Thai	ตะปูบวม	—
Turkish	Şişen Çiviler	—
Chinese (simplified)	肿胀刺钉	—
Chinese (traditional)	尖刺強化	—