Soul of Flight

The Soul of Flight is a material used to craft the Angel Wings and Demon Wings, accessories which grant flight and slow-fall. Souls of Flight are dropped by the Wyvern. To craft both sets of Wings, a player must acquire 50 Souls of Flight, so they must kill 5-10 Wyverns. The Souls of Flight are dropped at the position of the Wyvern's head upon death. This may confuse new players as to whether souls were dropped or not if they kill an offscreen Wyvern, or a Wyvern inside of blocks.

Trivia

 * The Souls of flight you obtain are only used for crafting two functionally identical items, rendering them useless otherwise.