Talk:Perpetual Vortex/@comment-77.100.144.163-20180329154513/@comment-24515081-20180329155908

its more or less for convenience, you can just toss a few vortexes in one spot at the start of a defense mission and not worry about it until 5 waves later. It makes the ability more passive so you can focus on other things, like blanketing the whole area with teslas