Hollow Men are among the upper echelon of fomor power, but the exact nature of that power differs depending on the type of Scavenger Bane possessing them. Some examples are below:

Spider Colony: Venomous bite, Wall Walking, Webbing

Rat Colony: Footpads, Infectious Touch, Rat Head

Constrictor Colony: Maw of the Wyrm, Mega-Strength, Rat Head

you couldn’t think. They’re everything to you now. You need them. You hate them. You need them.