Add Serrated & Self-Correcting

module/helpers/utils.mjs

@@ -172,6 +172,26 @@ Roll.replaceFormulaData = function (formula, data = {}, { missing, warn = false
     return nativeReplaceFormulaData(formula, data, { missing, warn });
 };
 
+foundry.dice.terms.Die.MODIFIERS.sc = "selfCorrecting";
+
+/**
+ * Return the configured value as result if 1 is rolled
+ * Example: 6d6sc6  Roll 6d6, each result of 1 will be changed into 6
+ * @param {string} modifier     The matched modifier query
+ */
+foundry.dice.terms.Die.prototype.selfCorrecting = function(modifier) {
+    const rgx = /(?:sc)([0-9]+)/i;
+    const match = modifier.match(rgx);
+    if ( !match ) return false;
+    let [target] = match.slice(1);
+    target = parseInt(target);
+    for ( const r of this.results ) {
+        if ( r.result === 1 ) {
+            r.result = target;
+        }
+    }
+}
+
 export const getDamageKey = damage => {
     return ['none', 'minor', 'major', 'severe'][damage];
 };