Danlwd Sayfwn Qdymy -

But maybe it's a ?

d (4) → y (25) if shift -5? That doesn’t match.

"danlwd sayfwn qdymy" — might be a of each word? danlwd sayfwn qdymy

Wait, perhaps the cipher is for "danlwd sayfwn qdymy": d→q, a→n, n→a, l→y, w→j, d→q → "qnayjq" s→f, a→n, y→l, f→s, w→j, n→a → "fnlsja" q→d, d→q, y→l, m→z, y→l → "dqlzl" Gives "qnayjq fnlsja dqlzl" — not English.

Not obviously English.

However, sometimes these puzzles use like "d" stands for "a" (so shift -3):

→ "wzmodw hz budm jwbnb" — no.

d (4) → q (17) a → n n → a l → y w → j d → q → "qnayjq" (nonsense)