I took inspiration from the General Grievous character idea here

General Kalani

Health: 900

Attack Power: 70

Movement Speed: 2.2

Attack Speed: 0.75 s

Attack Range: 7

Separatist Leader

Ranged character that calls in B1 Battledroids to assist him and supports living allies as time progresses

After 5 consecutive attacks, General Kalani calls in 4 B1 Battledroids to assist him

Skill: Superior Tactics

Nearby allies focus fire on where General Kalani is attacking

Special Ability: Might of the CIS

All living allies' movement and attack speed increases by 3% from the base state every 6 seconds up to 30%. All stats will be reset if General Kalani is killed.

Unique: Droidekas

Health: 300

Leader/Squad Attack Power: 130

Building Attack Power: 75

Movement Speed: 3/1.25

Attack Speed: 1.25 s

Target: All

Attack Range: 6

Deployment Time: 1 s

Unit Count: 2

Rolls around when going long distance and walks when following a target. Immune to all unit blaster fire while shields are activated. Exposed to melee units, turrets, and when rolling.

B1 Battledroid

Health: 150

Attack Power: 55

Movement Speed: 2.5

Attack Speed: 1.6 s

Target: All

Attack Range: 6

Open to criticism :)