Well, to understand how things even got to that place, they had to first consider how they got there. When Midas was in the Shrine he was not idle at all. Most people had thought that he was busy regaining his Energy or practicing something, but what Midas was doing was crafting.
Midas had needed tools, and so piece by piece, he had crafted them. First Midas created a weapon he called the Whisper. The Whisper was something special to Midas, a living Poison that he had conceived of in the Trials, and he had worked on, making it better and better as time went by.
It was invisible and odourless, and it could slip through the air, penetrate the skin and spiral the very essence of someone into chaos, turning them to mush. Anything it touched was something that would soon crumble… as long as it was made of organic substance.