Also called the A.C.I.D. launcher, this is a building with the "Disintegrator" ability that turns target tiles into A.C.I.D. pools. It also removes any existing terrain (like mountains) and units that were on targeted tiles.
Note: The building is under player control and can be damaged by both by attacks or by changing the tile it is on into a "Fire tile". It takes damage like a unit, but cannot be pushed by abilities.