Add weapon data

public/data/weapons/fafnir-flame.json

@@ -0,0 +1,17 @@
+{
+  "id": "fafnir-flame",
+  "name": "Fafnir Flame",
+  "atk": 248,
+  "crt": 43,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Flame Overload",
+      "description": "[SP: 15][CD: 20s] Generates three explosions to blow up nearby enemies. Each explosion deals 240% ATK of Physical DMG and ignites enemies, dealing 400 Fire DMG every 0.5s for 3s."
+    },
+    {
+      "name": "Saint's Pet",
+      "description": "During Burst Mode, gain 18% Physical DMG. When hit or when triggering Ultimate Evasion, cast 1 burst of Active Skill. CD: 5s."
+    }
+  ]
+}