Barrow slowly replaces the environment around himself with an otherworldly forest. He can move in this 'borough' effect but cannot move beyond it, though he can extend the borough's radius by standing at the perimeter of it. This change of position means that the area not in his presence reverts to normal.
It is unknown how his powers interact with others.
The resources provided by his zone make him and members of his group essentially self sufficient.
↑ 1.01.1Barrow Slowly replaces environment within a fair radius with an otherworldly forest. Cannot move beyond forest effect, but can extend radius by standing at perimeter. Lost Garden Shaker Wildbow's Parahuman List
↑ 3.03.1I put the folder away carefully, picked out another. Lost Garden. High threat level, low crime rate, low engagement level and moderate activity level. Leader, Barrow. A powerful shaker, similar to Labyrinth, only rather more single-minded in what he did. He couldn’t leave the altered area he created around him, only extending it slowly to an area while letting it fade behind him, an effect described as ‘a depression’ with overgrowth extending into the surrounding neighborhood. Tattletale’s own notes in the file suggested he was making slow but steady progress towards Brockton Bay, and that he had been since the portal appeared.
I flipped through the rest of the file. What kind of people gravitated towards someone like that? Apparently a lot of very young parahumans, boys and girls around Aisha’s age, had gathered around the middle-aged Barrow. A little creepy, when I imagined that collection of capes and the resulting dynamic. - Excerpt from Imago 21.7
↑ 4.04.14.2“There are two ongoing wars between villain factions in two locations,” Cinereal said.[...] “The second war is over the portal-wracked areas in the heart of the city. Those of you who are more used to working over there will recognize the names. Deader and Goner operate from a corner world much as we’re operating from the Bunker. Barrow is a corner world, in a manner of speaking. The Lords of the Pit have the villains of the Pitstop under their thumb. We think the best use of resources would be to put Advance Guard on this. [...] We are very curious and very interested as to whether any of the other corner worlds are shielded from Teacher’s eye. If possible, we’d like to talk to Barrow and to have Deader and Goner in custody for interviewing.” - Excerpt from Breaking 14.2
↑Lost Garden approacheth, sending members after us and trying to clear way for Barrow to advance. Annoying but no problem until they enter city limits. - Excerpt from Drone 23.3
↑“Don’t,” I said, again. “Don’t send anyone, don’t come. Not unless you’re sure you can afford to.”
"Okay. Don’t become one of those voices in my head, Victoria. I’ll put you in a corner of my brain with Bastion, Barrow Rose, and Shatterbird.” - Excerpt from Blinding 11.9
↑“That gets more complicated, and it’s less about the places to watch and more about the names to keep an ear out for,” my dad said. “Marquis, Goddess, Lord of Loss, Mama Mathers, the Crowley brothers, Deader and Goner, Barrow.” - Excerpt from Glare 3.5