The Ultralisk by PrivateJoker

Ultralisks are the Swarm's ultimate assault life form. 

Their thick carapace makes them shrug off C14- Gauss fire as if it was nothing. Their blades tear through whole groups of those enemies that they didnt just trample into the ground yet. In melee, these beasts annihilate anything the Koprulu sector has to offer, leaving cannon fire from afar or from the skies as the only good option for defence. 

This one has stumbled into a dimensional fracture just to find itself in the Nexus. Without the control of its Broodmother, this barely sapient animal will do what it is best at: Survive- and devour everything that looks tasty. 

Appearance: 

The evolved version that the swarm fields in SC2, like shown above. It could use the model that Kerrigans Ult (which should be changed to something different) currently uses, but be way bigger. A life-sized Ultralisk would oviously be far too gigantic to fit into the game, but it should at least be Anub'Arak size, if not a bit larger. 

Base Stats: 

Health: 2600

Attack Range: 2
Attack Speed: 1
Attack Damage: 120


Strengths:
- Big Health Pool
- Effetive damage mitigation against fast autoattackers and abilities with a lot of ticks ( for example, Tychus Q).
- Impactful abilities
- Free AoE damage
- Good Wave/Camplear
- Big model to bodyblock
- Can push opponents around

Weaknesses:
- Cannot mount
- Not very effective damage mitigation against burst damage
- No self heals
- mediocre single target damage
- Big model can be used against you