Zerg: Hollowlisk (Garmbreed)
Attack type: Melee, bonus vs armored.
Speed: Fast while unburrowed, slow while burrowed.
Evolves from: Hydralisk
Abilities:
Burrow: Unit gains the following while burrowed: Attack, +2 armor.
Dig: Unit may move while burrowed.
Attack description: Unit moves untill at melee range from target. Unit pops its armored side out of the ground to attack the target. If the unit stops attacking it becomes unvisible again.
Upgrades:
Acid Coat: Unit now moves at midium speed while burrowed.
Benefits from zerg melee upgrade and zerg carapase.
Lore:
After destoying Daggoth's followers, Kerrigan assimilated its foes memories in order to obtain knowledge of the cerebrates and even Daggoth's creature assimilation interests. The Garmbreed was the family of zergs created with this knowledge.
The Hollowlisk, is a powerful zerg with the capability to dig through the toughest terrains. Its front extremities and head have addapted to breaking and making a path through the terrain. While, the units tail has evolved into a flexible muscle that pulls ground away from the sides while tunneling.
Its strong muscles also give it a powerful melee attack. This unit may overwhelm a squad of maraunders in no time, while it may burrow again to avoid their powerful firepower. After encounters with this deadly creatures, terran outposts ordered their tanks to siege only if a seismic activity detector was active nearby.
Concept: