(This is a prequel thing to the Striking Storm MOC).
This defense robot was the very first machine developed under the Hero Factory Barrier Program. After getting approved by Mr. Makuro, the Hero designers started crafting the autonomous Tempest Shadow as a prototype for a potential line of defensive robots.
Tempest Shadow was armed with a cloaking device, meant to be used for stealth strikes. Standing at the height of ten heroes, it possessed powerful twin shock daggers that could paralyze any possible threat along with a thunder whip and jet stabilizers on its feet for improved air maneuvers.
Despite all the successful tests, Tempest Shadow was discontinued due to some A.I. malfunctions and replaced by a newer model.
Inspired by Tacit Ronin from Pacific Rim, albeit just slightly. Was heading for a puny-yet-powerful machine, I guess I managed to do it.
Gallery with more pics here.