diff --git a/lib/cards/card-database.js b/lib/cards/card-database.js
index 054cc70..83a2e3a 100644
--- a/lib/cards/card-database.js
+++ b/lib/cards/card-database.js
@@ -151,7 +151,9 @@ async function fetchPokewalletRarities(setCodesWithoutRarity, timeout = 15000) {
     });
     clearTimeout(timer);
     if (!res.ok) return map;
-    pwSets = await res.json();
+    const body = await res.json();
+    pwSets = body.data || body;
+    if (!Array.isArray(pwSets)) return map;
   } catch {
     return map;
   }
@@ -396,7 +398,7 @@ async function enrichWithPokewalletRarities(index) {
   let enriched = 0;
   for (const card of index) {
     if (card.rarity) continue;
-    const normId = normalizeCardId(card.id);
+    const normId = normalizeCardId(card.id).toLowerCase();
     const rarity = pwRarities.get(normId);
     if (rarity) {
       card.rarity = rarity;