trying some shorter descriptions, which means I can make smaller treasure cards.
Scale of Syrreth - The sole remains of the legendary dragon, blackened by fire.
Toilar's Sword - Well worn blade of the bloodthirsty northman.
Word of Alrin - The Sacred writings by ofthe noble cleric.
Ward of Faith - The Shield held by the Sir Relaren, protector of the abbey.
I think they can be a bit longer though, to allow for some crossover between the stories.
This sounds like a cool little project! I'm a huge fan of magic items, and of flavour text. This is relevant to my interests!
I did some little edity stuff to your entries to make it a little tighter.
For the Sword of Syrreth, I think it's a great idea to mention Toilar. Right now you have some cosmetic information about the item that we can see.
Sword of Syrreth - The sole remains of the legendary red dragon, slain by the hero Toilar.
I added that the dragon was 'red'. Then, by leaving out 'blackened by fire' you're suggesting that it was darkened, either in a fiery explosion or by the aeons that have passed. The player's imagination is left to ponder... which is always nice
Is every item going to have been used by a fabled legend? If so, that's totally cool.
If you're not married to that idea, I would suggest adding some slightly more mundane magic items. As in D&D, the normal magic items I would get would be like a Circlet of Intellect, which just gives me +2 Int. You can also add some fun backstory to these descriptions, or maybe some humour!
Circlet of Intellect - They say Thynlnys had one just like it before darkness took him.
Circlet of Intellect - Well don't you look smart!