Wednesday is Water Day for me, and I don't know if Swarm Hosts are water trait, or anything, but I say Water Day is like tap water that goes underground, so I say Wednesday is a Nydus Network + Swarm Host sort-of-day. The Nydus Worm does go underground, so it might be stretching around the Terran drain pipes, so it might have access to tap water, ahaha. Swarm Hosts are like surinam toads, that live underwater, so that sort of makes Swarm Hosts water trait, too.