Attack Delay: 30
How to obtain:Edit
Discovered with Atom Fusion though required units were not noted at the time.
It was my first Fusion, using the basic starter units. Possible pairings from the following;
Found that Megabot & Helicopter 4 will sometimes produce the Pala - no idea how to easily acquire the helicopter! Continuing Atom Fusion experiments!
(I have since found a few, check Atom Fusion page)