Totem Shell is currently bugged. In the [url=https://imgur.com/9gkpTIT]Official Destiny 2 Companion app[/url], one of the rolls listed is Speed Demon. After [url=https://imgur.com/eVBaTN3]farming 50+ shells[/url], none of them have dropped with Speed Demon. The planetary perks are also locked to the Tangled Shore, which is exceptionally odd for a 700 Silver exotic shell when most of the legendary shells are perfectly capable of dropping with different planetary rolls.
Or the rng for the perk is just that bad. What does speed demon even do?