Poison

Sure enough, when Liu Ye arrived at the scene, he couldn't see a single cut or burn on Queen's Luna's body aside from some dust on her outfit. On the other hand, the rest of the thieves were all dead with only the Red Nightmare still left standing. 

"Damn it! Damn it! Damn it!" the bald man cursed under his breath as he saw Liu Ye arrive and continued to run from Queen Luna's bombardment. He didn't even try to fight back and only looked around for an escape route. 

The reason for that was clearly Queen Luna's identity which was exposed with her bandana lowered. Who in their right mind would fight the Queen if they knew how powerful she was? They could only try to escape or ask for forgiveness but Queen Luna was ruthless in this regard.