Overload is a Basic Powercard in Bloons Card Storm, introduced in version 3.0. It destroys a target Bloon with 100 or less health on either player's side.
In decks that run a lot of Bloontonium generation, this is a cheap removal. It's particularly effective against weak Bloons with special gimmicks, such as Steady Growth Bloons, Blooming Bloons, weaker Double Attack Bloons, Triple Threat Bloons, and Buddy Bloons. It can also finish off stronger Bloons after chipping them with other damage sources like Long Range Rang.
Overload is best added to a deck versus mirror aggro to finish off a powerful Bloon, or gain leverage against life loss from the opponent.
Overload costs the same as Quincy's Arrow Shot but does more than 3x damage to a weakened Bloon. Aim to use it on Bloons with about 80–100 Health for the most value.
Quincy synergizes very well with Overload in decks for anti-Aggro purposes. Arrow Shot can get Bloons down to 100 or below health, and an Overload can use that damage to pop a Bloon without having to spend too much Gold or Bloontonium. Perceptive Shot can also put specific Bloons at 100 health or less, such as Double Yellow Bloons or Green Bloons boosted by Zee Jay’s Passive Awesomeness.
Overload is also a good option against Bloons with Armor, especially Lead Coating Bloon.
On Dark Castle, a Bloon that would have 100 Health elsewhere will need some damage first before Overload can target it. Notable examples are a Blooming Bloon boosted by Zee Jay, or a Steady Growth Bloon.