I would love to see more vestiges (like from wildemount ). These are powerfull items (weapons/armor/items) that grow in power along with your character (note that by power i dont just mean 'now it deals more dmg' it can be anything that might be usefull to the party). I think all campaigns should have these but would be very nice to see for frostmaiden.
Simply because it not only creates something connected to your campaign but also gives meaning to items that are ment to play a bigger part in the characters stories. It might even guide them to certain quests needed to unlock new powers within an object or simply to find out what they can do. Mythic Odysseys of Theros creates a similar effect with items that build in power according to the favor of certain gods. Its a cool way to keep aspects of your campaign important (like a gods favor). I think well thought of items can shape campaigns or at least make them even more interesting.
I will leave the creative part of the items up to you but there are many ways to have them build and perhaps lose power to give the players an extra struggle or motivation to do certain things. Like will they choose to do something dodgy or evil to increase their power. Or will killing anything yourself make your item lose power (shouldnt be to easy for a good character to just not do evil, it should somehow restrict their action in a way that needs extra RP or creativity from the players.)? Perhaps certain items need certain deeds to be done every x time or the power drops again. I think this could create a whole new level of gameplay.
Restriction ofcourse is to not overflow the campaign with them but for your homebrewing thats not yet relevant. If you create a bunch a DM can cherry-pick what they want in their campaign.
I guess I can try that
Chrrently working on a weapon once that is finished i will try to work on that
Have to do research on submarines and what not first
https://www.dndbeyond.com/magic-items/2253433-1-icebreaker
Currently a work in progress. Will change but will stay within the territory of cold
Let me know if you are able to view it or not.
yes, I can view it
Alright some people have had problems accessing it sometimes. Still a work in progress.
I've actually got a magical gnome submersible buried in a text file somewhere along with a dwarven drill tunneler.