With blink, it is possible to avoid damage from long falls (instead of going and collecting/buying those damn light feathers) if, just before you land (you need to time it just right) you hit blink. You will either jump back up a little bit and hit the ground for very little damage, or will simply blink ahead of where you were going to land taking no damage. If you didn't wait long enough, you will blink back to the top of where you fell. This can also be nice during chases with other people. run to the edge of a cliff, jump off, and immediately blink (after stopping pushing forward), so you blink right to the top of the cliff again, while the other plummets to its death.