This is a mech that stands at 20 feet tall.
It is a variant of the Arach mech of arachnid style mecha weapons. This specific one is a humanoid model with a scorpion tail - the Scorpius Pattern.
This mech is used for close quarter combat and extremely swift engagements. The mech is plugged into the user's own nerves through ports drilled into their body and they can manipulate the mech as if it is their own body. A risk in using this mech is the machine spirit AI that has a fierce temperament. It has the possibility of overriding the pilot's own mentality and personality should their ego be too weak.
The tail is extremely flexible and can move like quicksilver. The blade on the tail is a power blade that glows with red energy. It can cut through even metal with a flash. Instead of eight eyes, it has one giant eye that has high processing abilities and can hyperfocus. The mech is extremely agile compared to other mechs and seems to move like it is made out of flesh instead of metal. It runs at an odd, arachnid, yet loping run that can eat up dozens of feet in a flash. However, in exchange for its' high speed ability, it has a lower armor rating compared to other mechs.