You grab the baseball bat. It feels good in your hands. You run your hand over the smooth wood, and you feel a sprig of pain as your finger catches a splinter. A drop of blood drips down your hand and you see it get absorbed into the bat.
A chill comes over you as you feel your body begin to move on its own. You grip the bat tightly and turn towards Casey. Casey gives you a curious look before you swing and hit Casey in the head, knocking Casey to the ground. Your sight goes red and your mind is overtaken by another presence.
You are possessed.