fix small

src/ui/Duel/magics.tsx

@@ -20,7 +20,7 @@ const Magics = () => {
   return (
     <>
       {magics.map((magic) => {
-        return <CMagic state={magic} />;
+        return <CMagic state={magic} key={magic.sequence} />;
       })}
     </>
   );

src/ui/Duel/monsters.tsx

@@ -106,6 +106,7 @@ const ExtraMonsters = () => {
       {xs.map((x, idx) => (
         <plane
           name={`extra-monster-${idx}`}
+          key={idx}
           position={position(x)}
           rotation={rotation}
         >