I'd like it if Webber fully embraced his spider side with his refresh, losing sanity in the day (inspired by how spiders cower in sunlight), losing no sanity at night/dusk, being able to sleep in spider dens, something to do with spider queens, more silk crafts like:
A small silky egg sack/pod that acts like a portable chest that can be placed and picked up, but doesn't preserve food indefinitely like the bundling wrap, and you can only carry one at a time?
Specialized craftable spider turf to slow anything that walks on it (except other players, for anti-griefing reasons), possibly as a hound defense?
A silky web trap that catches any bugs/flying creatures that fly into it, could be used as a mosquito net, or for trapping batilisks for a little bit. (Maybe save this one for in case they add any new hostile bug types.)
Idea inspired by @minespatch, a spider sense-like passive that displays a HUD animation at the direction of nearby hostile mobs, like pigs, hounds, bosses, etc. (For those times where you can't tell where Deerclops is coming from, for example.)
I wanted to suggest night vision, but I believe that would be a little game breaking, maybe if it was like a torch radius around him that could allow him to preform actions in the dark at the cost of massive sanity drain? Dunno.
This might be a little different, but what if his craftable spider dens were slightly reworked to spawn those baby spiders from the Forge? They could be improved and strengthened through days + feeding them, and would have more combat utility than regular befriended spiders. Perhaps they could be taught to spit in similar fashion to the spitters, or fight like more aggressive spider warriors that bite multiple times, and perhaps they could even inflict poison? These spiders could be permanently loyal to Webber players until they die, or starve, and wouldn't attack other players or drain their sanity. * (This is my favorite idea)
(and maybe these baby spiders could have different designs, like how pipspooks have different tufts of hair?)