Add weapon data

public/data/weapons/nuada-27s-grief.json

@@ -0,0 +1,17 @@
+{
+  "id": "nuada-27s-grief",
+  "name": "Nuada's Grief",
+  "atk": 279,
+  "crt": 32,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Airgetlám",
+      "description": "[SP: 4][CD: 20s] Deals 500% ATK of DMG to enemies in front. Enemies are also knocked airborne and bleed, taking 500 Physical DMG every 0.5s for 8.0s."
+    },
+    {
+      "name": "Dazzling Blade",
+      "description": "Gain 40% Lightning DMG."
+    }
+  ]
+}