diff --git a/theresmore-helper.js b/theresmore-helper.js
index 1ab5462..9eece88 100644
--- a/theresmore-helper.js
+++ b/theresmore-helper.js
@@ -381,40 +381,40 @@ handlers[1] = (tabNode, containerNode) => {
   const list = containerNode.querySelectorAll(`button.btn`);
   for (const node of list) {
     if (node.id === id) continue;
+    if (node.querySelector("button.theresmore-helper")) continue;
     const name = node.firstChild.textContent;
-    if (!node.querySelector("button.btn")) {
-      const button = document.createElement("button");
-      button.classList.add(
-        "-bottom-0",
-        "right-0",
-        "inline-block",
-        "py-px",
-        "px-2",
-        "rounded-full",
-        "font-bold",
-        "text-xs",
-      );
-      button.textContent = "A";
-      if (blackList.has(name)) {
-        button.classList.add("text-gray-600");
-      } else {
-        button.classList.add("text-green-600");
-      }
-      button.onclick = (ev) => {
-        ev.stopPropagation();
-        if (blackList.has(name)) {
-          blackList.delete(name);
-          button.classList.remove("text-gray-600");
-          button.classList.add("text-green-600");
-        } else {
-          blackList.add(name);
-          button.classList.remove("text-green-600");
-          button.classList.add("text-gray-600");
-        }
-        saveBlackList(blackList);
-      };
-      node.appendChild(button);
+    const button = document.createElement("button");
+    button.classList.add(
+      "-bottom-0",
+      "right-0",
+      "inline-block",
+      "py-px",
+      "px-2",
+      "rounded-full",
+      "font-bold",
+      "text-xs",
+      "theresmore-helper",
+    );
+    button.textContent = "A";
+    if (blackList.has(name)) {
+      button.classList.add("text-gray-600");
+    } else {
+      button.classList.add("text-green-600");
     }
+    button.onclick = (ev) => {
+      ev.stopPropagation();
+      if (blackList.has(name)) {
+        blackList.delete(name);
+        button.classList.remove("text-gray-600");
+        button.classList.add("text-green-600");
+      } else {
+        blackList.add(name);
+        button.classList.remove("text-green-600");
+        button.classList.add("text-gray-600");
+      }
+      saveBlackList(blackList);
+    };
+    node.appendChild(button);
   }
 
   if (containerNode.firstChild.textContent === "ALL") return;
@@ -569,7 +569,7 @@ handlers[4] = async (tabNode, containerNode) => {
       }
     }
   } else if (currentSubTab.firstChild.textContent === "攻击") {
-    const chooseBtn = containerNode.querySelector(`button.btn.btn-dark`);
+    const chooseBtn = containerNode.querySelector(`button.btn:nth-child(2)`);
     if (chooseBtn && chooseBtn.firstChild.textContent !== "没有敌人可供攻击") {
       if (chooseBtn.lastChild.id !== "auto-attack") {
         const btn = document.createElement("button");
@@ -729,8 +729,13 @@ function customFunction(MainStore) {
   }
 }
 
-function sleep(time) {
-  return new Promise((resolve) => {
-    setTimeout(resolve, time);
-  });
+async function sleep(time) {
+  let timer;
+  try {
+    return await new Promise((resolve) => {
+      timer = setTimeout(resolve, time);
+    });
+  } finally {
+    return clearTimeout(timer);
+  }
 }