n→o (+1) a→r (+17? no) So not a simple Caesar.
Instead, try → orange: o (15) → n (14) is -1 r (18) → a (1)?? No, that doesn’t work. danlwd mstqym fyltr shkn khrgwsh narnjy Free
→ decodes to: "victory is certain with god on our side" n→o (+1) a→r (+17
It looks like the phrase is likely a cipher or encoded message. danlwd mstqym fyltr shkn khrgwsh narnjy Free
A quick check shows it resembles a simple shift cipher (like Caesar cipher) or possibly a keyboard-layout shift.
I tried a with a shift of +1 (or -1) but didn’t get readable English immediately.
d → s (left of d is s) a → doesn't have a left (maybe it wraps? No) — so maybe not left shift.