Add weapon data

public/data/weapons/schiffschneider.json

@@ -0,0 +1,17 @@
+{
+  "id": "schiffschneider",
+  "name": "Schiffschneider",
+  "atk": 289,
+  "crt": 17,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Magstorm Surge",
+      "description": "[SP: 20][CD: 18s] Unleashes a downward cleave that generates an EM storm to knock down enemies within the AOE, dealing 2,333 Lightning DMG and making them conductive. Conductive enemies receive 50% more Lightning DMG for 7s."
+    },
+    {
+      "name": "EM Cleaver",
+      "description": "Attacks deal an additional 80 Lightning DMG, and further gain 30% Crit Rate against paralyzed enemies."
+    }
+  ]
+}