Horizons official site come up with a patch notes for the Blight Shard patch applied on Jan.13,2006.

While little is known about the Festival Treants, their affinity for gift giving has overshadowed their mysterious arrival.� Now that the Winter Festival is drawing to a close, people have begun to wonder what will become of their generous new friends.� Not everyone is curious however, as they already know what effects this time of year have on the spirits of the Treants.....

• Reklar‘s Winds of Fury is now removable and will no longer be affected by Detoxify.
• Beginner Essence Construction Sphere added to Enchanter trainers.
• Quest �Dragon: Gain the power of the Draining Strike� now expects 10 Cedar or Massive Cedar Treants instead of 20.
• Purple Necroflies should now be more social and aggressive.
• Darsenia, a Satyr Druid, has arrived in Mahagra and is studying the emergence of Blighted Festival Treants.
• Professor Ferdo Roonwinkle in New Rachival has begun a new line of research and now carries a set of formula for sale.
• More....