Lireins are wind spirits, and can quickly stir up quite a storm! Within their bodies you'll find soulstone wind shards, good for a variety of purposes!
Lireins, the spirits of the storm, possess a soulstone known as wind shard in their bodies. Rizraell asks you to collect them to create the Scroll of the Wind. Defeat the lireins and return the wind shards to Rizraell. You will find lireins near the Neutral Zone towards the end of the Elven Forest.