Seems a rough version of Trapping is up on the PTS for some zones, caught my first companion earlier in Scarlet Gorge
The name of the mob will appear on your screen where your planar bag normally is, a "temporary ability" icon will appear to use as a net, simply get into melee range and use the net on mob
Companion is now yours...
Best of all, it does not despawn so no more endless camping of mob or waiting for a respawn if it was just caught by somebody else, it's soulbound as well so you can scrap that idea of grinding and selling them
What does Scoots look like i hear you ask?
Also had a few different Cobras pop up on screen in Shimmersand but couldn't target anything so i'm assuming some zones aren't populated yet ?