Elixir, an Equip Item.

Equip Items is a new kind of items aside from Road Items. These items can't be put on the road, but they can be "equipped" to a tower or a bloon by clicking the bloon/blimp/tower when "placing" it. These items will often strengthen the towers in some ways (like Elixir and RegMat) or damage the bloons in some ways (like Chaotic Essence... sort of!). All Equip Items will stay in your Inventory forever and won't disappear if you finish a game without using it until you equip them, of course.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.