The following article contains information about a StarCraft II: Heart of the Swarm unit or structure that was canceled.

DoorBreach SC1 CineBattleAmerigo1

This following section contains information from concept art that may not be canonical.

UnderfiendKerriganMarine SC2-HotS Cncpt1

An underfiend

The underfiend is a zerg creature that appears in concept art for Heart of the Swarm.[1]


  1. 2013, Underfiend. Sons of the Storm, accessed on 2014-06-13
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