Add a k and I'm a clown, remove the y, and I am a noun. I have no breath, but I bleed red, my color changes in a threesome with two other elemental variables. What happens to nails, the adjective, that can cause tetanus if you step on one, afflicted with this?

As a verb, powerful undead might do this to your energy. As a noun, you likely have two, but maybe three or even four in your main bathroom. Make it an adjective with ing and it may be how this riddle affects you.

Put me on the table and cut me. But don’t eat me. What am I?

Liquid fire within a metal vessel, it wakes the heart of machines. Your ex partner would use this on your clothes to set things off once . Its aroma when coming come lets you know that you have an emergency call to make

Through loop after loop Wrap me around your middle Orion's version line up in a group Put a notch in me when you solve this riddle