Grievous

The  is a Tier 5 Tank that upgrades from Akafuji and Padawan at Level 60.

Design
Unlike most Akafujis, it is clearly obvious what it is even when closed. Being a Padawan branch, its blades are hollow with colored outlines. One of them is colored like Padawan and the other is colored like Skywalker.

Technical
Being a Padawan branch, it is immune to knockback. Otherwise it is identical to Akafuji.

Trivia

 * Like the other Padawan branches, this tank is a reference to Star Wars. The character General Grievous uses stolen lightsabers to fight, which is why this tank has two differently colored blades.
 * The character is also known for being extremely flexible, which may be the reason the name was given to an Akafuji that transforms.