Hive commanders.
A massive key mind war-form, the Abomination brings order and direction to the lesser Flood, turning feral parasites into a cunning and efficient collective. An evolved form of the Juggernaut command form, these towering nightmares are used when standard hives cannot be established and the Flood must stay mobile to avoid detection and destruction.
Abominations increase the speed and health of all nearby Flood units. As the parasite grows in strength, it will construct attack waves around these "generals". Blunting their onslaught requires making a difficult choice between attacking the Abomination or prioritizing the smaller, more immediate threats.