Infinicorn

This is a rare case of your run of the mill unicorn, but instead of one horn, an Infinicorn has infinite horns. In order to facilitate this, an Infinicorn's horns are constanly falling out and regrowing. This means that the Infinicorn must constantly keep moving, lest it drown in its own horns. To avoid this, the Infinicorn must run with the very edge of the universe and is the only being capable of moving at the speed of light. Once the universe stops expanding, we need not worry about being killed by it collapsing back on itself, as we will already have drowed in the Infinicorn's mass of outcast horns.