Klow's corallian power is to open portals from one place to another.
To go through the portals seems to be a perturbating experience. Klow describes the sensations this way: "Our world as a drug addict... Darkness and strange particles... Cold winds... The energy dragging you, the ground moving under you... Strange, disturbing" (strip 85).
Most people are so disturbed by the travel they immediately vomit after exiting the second portal.