Rings of Shared Concentration

''Okay, so ye've got no feckin' clue how she makes her magic work. Ye knew a guy, 'e was kind of a prick but that's cuz he's a knife eared keeb, but 'e wenna college for, what was it... twenty? Ye twenty feckin' years, but 'e 'ad a book and formulas and magic words and THAT's 'ow 'is magic works. it makes sense, it's science. Ye don't know science but ye don't hafta cuz that makes sum sense. But now ye got sum armor from yer daddy and a feckoff axe and you know howta hit stuff so good it stays hit and yer a real adventurin' lad now. But yer feckin' magic girl is cute as a button and really nice and sings at birds an' shit and ye ain't useta that but 'er magic don't make a licka sense an' just happens. Sometimes she turns ya into a feckin' potted plant and ye can't do nuthin' but rustle at a bastard but sometimes she turns blue until ye've gotten her back to a book-learned fecker to turn her unblue. But the glaikit lass gave you this ring, and she's got one like it she wears and she said because ye can cast spells ye can 'elper cast more spells an' she kissed ye on yer blasted face an' ye know what feckit you'll do whatever she tell ye. So, off ye go to keep swingin' yer feckoff axe in the name of Kord. Ye don't know what people keep tellin' ye about yer "oath spells" but sometimes ye ask Kord ta help ye exploderate a fucker and by Kord it 'appens''

Wonderous Item, requires attunement by a character with at least 14 Intelligence or the ability to cast at least a 1st level spell.
These two rings, when worn by two different people, grant the ability for one of them to concentrate on a spell for the other. They make the concentration saving throw with disadvantage. The DC for this Con save is 13 or half the damage, whichever is higher.