Answer:
Searing 'cross the pitchΒ-black skies, I scream in celebration, Yet moments later, my outburst through, I am naught but imagination.
Look into my face and I'm everybody. Scratch my back and I'm nobody.
What month of the year has 28 days?
What is pronounced like one letter, written with three letters. And belongs to all animals?
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
I have two eyes in the front and a lot of eyes on my tail