Bloon Melter is an Advanced Powercard in Bloons Card Storm, introduced in version 2.0. It destroys a target Bloon on the player's side and does 20 damage to the opponent. It will trigger any On Popped or On Destroyed effects on the target.
The card artwork portrays Gwendolin delightfully burning a Bloon with her flamethrower, much to Amelia the Amazing's dismay.
The main purpose of Bloon Melter is to destroy friendly bloon(s) in the player's favor. The base damage is low, but can add up over time.
The player can use Bloon Melter to deactivate an opponent's Corvus Academy of Arts without using a Monkey removal.
If you are going to use it to damage the Hero, however, use it on bloons that are weak from the start or too weak to fight the opponent, such as Swarm Red Bloon.
Bloon Melter can synergize with Bloons with an "on destroyed" or "on popped" keyword, such as the Sentinel Bloon. When running a Mountain Obyn aggro deck, consider if dealing damage with the sentinels is worth the deck slot.
Using this with Sentinel Bloon gives you the effect of a Bloon Strike for 2 gold and 5 Bloontonium, and using it on two gives you a MOAB Strike for 4 Gold and 10 Bloontonium.
Bloon Melter can also be used for removing bloons for Hastening Bloon consistency, although doing so is expensive and generally unadvised.