Light fragment

Talk to Soldier Orbyu at Keucereus Alliance Base . He will send you to War Mage Artius with a quest item - a document.
Talk to Artius. He will ask you to come back later.
Talk to Artius again. He will advise you to contact the Relic Priest hidden in the fortress. To do this, contact Soldier Ginby.
Soldier Ginby will take you to the Relic Priest.
Priest Relic tells you about Monarch Ekimus, who guards the Seed of Immortality.
Return to Artius and give him this information.
Artius will send you to kill mobs in Seed of Destruction and get Destroyed Darkness Fragment Powder. It is necessary to obtain 100 units of powder. Mobs for hunting: Battle Dragon, Peltast Dragon, Healer Dragon, Legionnaire Dragon, Legionnaire Dragon, Young Dragon Mage, Dragon Mage, Battle Dragon Mage, Archmage Dragon, Surviving Legate Dragon, Surviving Legionnaire Dragon, Surviving White Dragon, Surviving Battle Dragon, Surviving Combat Dragon Mage, Surviving Dragon Mage, Surviving Dragon Healer, Surviving Dragon Peltast.
After collecting 100 units of powder, return to Artius. He will send you to Elven Village, Shadow of the Mother Tree .
Go to the north of the Elven Village, and in the shadow of the Tree of Life, purify the Destroyed Darkness Fragment Powder, turning it into Destroyed Light Fragment Powder. This is done by double-clicking on an item in your inventory.
Take the Destroyed Light Fragment Powder (Light Powder) to Lekon at the Alliance Base.
Lekon will create a Shard of Holy Light - a weapon to combat Tiat (level 85).
Go to Artius and talk to him, get a reward for completing the quest.