Add weapon data

public/data/weapons/oblivion-down.json

@@ -0,0 +1,25 @@
+{
+  "id": "oblivion-down",
+  "name": "Oblivion Down",
+  "atk": 409,
+  "crt": 35,
+  "rarity": 6,
+  "skills": [
+    {
+      "name": "Key of Sentience",
+      "description": "[SP: 0][CD: 26s] Unleash the Key of Sentience's power to immobilize enemies nearby for up to 8s (up to 3s against elite enemies or bosses). 1s after being attacked by wielder or her teammates, the immobilized target and enemies nearby will recover and take 2,150% ATK of Fire DMG (each enemy only takes the damage once)."
+    },
+    {
+      "name": "Flaming Feather",
+      "description": "Enemies recovering from the weapon active become Deranged and take 100.0%+Nx100.0% ATK of bonus Fire DMG from the wielder for 15s (CD: 1s. N: times triggered). If N equals 5, Deranged status on all enemies is removed and enemies in a large area take 1,500.0% ATK of Fire DMG."
+    },
+    {
+      "name": "Peace Restored",
+      "description": "Wielder deals 35.0% bonus Total DMG and restores SP 30.0% faster from attacks."
+    },
+    {
+      "name": "Key of Sentience",
+      "description": "In Co-op Raid stages, wielder deals 22.0% bonus Elemental DMG and 22.0% more against paralyzed, frozen, or ignited enemies."
+    }
+  ]
+}