Attrition

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Attrition

Mobile

	Every 15 seconds either: steal 2 lives from opponent (assault mode) or add 2 lives (defend mode)

Tower		Path	Tier	Cost
COBRA		2	2	$400

← Double Tap

Finish Him! →

Attrition is the COBRA's path 2 tier 2 upgrade in the mobile version of Bloons TD Battles. Every round, the cobra steals 2 lives from the opponent and in return, generated 2 lives for the player. It has a 15 second cooldown and only occurs 3 times per round. Despite what the description says, it does not only generate lives without also stealing lives.

Costs and sell values

Tiers	Cost	Sell value
0-2	$1,150	$920
1-2	$1,550	$1,240
2-2	$2,200	$1,760
3-2	$2,600	$2,080
4-2	$4,350	$3,480

Update history

For a complete list of COBRA changes, see Update history:COBRA (Battles).

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Version 6.21

•  Upgrade cost reduced ― $600 → $400
•  Attrition: cash per tick when the opponent has 2 or fewer lives left increased ― $30 → $50