A swarm of eight origami birds erupts from the stack of papers consumed in the casting of the spell and flies toward a creature you can see within range. If the target is within 30 feet of you when you cast the spell, the swarm collides with the target, dealing 8d6 slashing damage to it, and the birds disappear.   If the target is farther than 30 feet away from you when you cast the spell, the swarm travels at a rate of 30 feet per round in the direction of the target, ignoring difficult terrain and moving around creatures and other obstructions as needed. While the swarm is traveling, it obstructs a 5-foot-cube area as if it were a Medium creature.   While the swarm is traveling, it can be attacked. It has an AC equal to your spell save DC. For every attack that hits the swarm, the number of birds in the swarm is reduced by one.   At the start of your turn on the round that the swarm reaches its target, the target takes 1d6 slashing damage for each bird remaining in the swarm. The birds then disappear.