An exercise of Doormaker’s power let me experiment with the portals.  They couldn’t move or drift, excepting the way they were anchored to the rotation of the planet as a whole.  Instead, I opened and closed new portals, timing it so the opening of one was a fraction of a second before the prior one closed.  I surrounded myself with them, a shifting, shuttering array of portals.

...

 I raised Doormaker’s portals as shields around me.

...

I stepped through a portal, putting myself halfway on the other side of the world.  I stood on the roof of the Byzantine Tower in Istanbul.  Third tallest building in the world, surrounded by a shattered city and waterways that were now polluted with detritus and rubble.

Then I opened fire.  Every parahuman I controlled with a ranged attack or gun fired into the portals I was opening beside them.  The exit-points were beside Dragon, and a cascade of bullets, lasers, energy shots, ice, lightning, metal and other effects obliterated her ship, tearing through the cliff face.

Wildbow, Worm, 30.3

It was the faerie girl.  She had him as a shadow-puppet.  A ghost.

I could hear my friend swear.  The others around her were tense.

They turned to run, sprinting through the portal.

Thousands of doorways.  She turned and looked in my direction.

But nothing appeared nearby.

The faerie girl was opening doorways for everyone but us.  Everyone but me.  People were running, fleeing into other worlds, and we were being left on our own.

Wildbow, Worm, 30.6