Fuser

This tank is used mostly for fusing and de-fusing tanks, meaning it can single-handedly create new tanks and it can also turn, say, a Xyv, into a guardian, defender and summoner.

Fusing
It can use the heated front barrel to fuse tanks, bosses or pretty much anything else. The score the fused entity has depends on what entities were fused. This process also has its defusion.

Defusing
It is the opposite of fusing. In this process, the Fuser can defuse entities. In this process, a Heavy Twin can be defused into a Twin and Pounder.

Origin
The tank's origin is yet unknown, some speculate it came from a much more advanced universe...