Swarming Cloudstalker

Flying
{1}{b}: Swarming Cloudstalker becomes an Aura enchantment instead of a creature. Attach it to target creature with power 2 or less. It has "At the beginning of your upkeep, put a -1/-1 counter on enchanted creature." and "When enchanted creature dies, create two tokens that are copies of Swarming Cloudstalker."