Pixie

The Pixie is an enemy that spawns in The Hallow and drops Pixie Dust. Wild Pixies come only in a yellow color - the other colors seen are summoned from the Fairy Bell. It also appears to be capable of only hovering, not flight, enabling it to glide up walls and hover over traps, but not move freely through the air. As a result, players can use a Grappling Hook (or similar item) to hang from a surface out of reach while attacking from range.

When a Pixie attacks, it occasionally inflicts the Slow or Silenced debuff.

Pixies are immune to every damaging debuff (On Fire!, Poisoned and Cursed Inferno).

Due to it being a light source, they are normally easy to spot before they can attack you.

Trivia

 * The Pixie's design is based on fairies from the Zelda series.
 * The Pixie was originally thought to be an upgraded Orb of Light due to its relatively friendly appearance and high amount of light emission.
 * This later turned out to be partly true as the Fairy Bell summons a colored pixie that serves as a light source.