Lost Ark features a new combat event with Guardian Raids, and on day one you’ll face off against three wild bosses. This powerful battle ends once you defeat all three bosses and rewards you with a special event currency to buy special honing materials. These bosses are Vertus, Frost Helgaia, and Nacrasena.
First, go to the venue, which should be near the original Guardian Raid location. You will see duplicate icons on your map showing the location of the event:
Once you enter the event, you enter a snowy battlefield where you must find either Vertus or Frost Helgaia. Use a beacon to find them easier. Once you start a fight between either boss, the boss Nacrasena should appear next to the bosses.
When you fight the bosses, they often disappear once you reach certain thresholds. The trick to this fight is to focus Nakrasena. Once you stagger Nacrasena, you’ll need to aim for his tail and break it. Once you do this, you’ll get tons of important buffs that will help you finish the fight much faster.
Once Nacrasena disappears, you need to focus on the other two bosses. Alternate between damaging the other two bosses while seeking and obtaining buffs from Nacrasena. Once you defeat the boss you will receive a chest containing some Winter Illusion Tokens. These tokens can be spent in the event shop for honing materials.
https://www.gamepur.com/guides/lost-ark-event-guardian-raid-day-1-guide-frostblade-infiltrator Lost Ark: Event Guardian Raid Day 1 Guide: Frostblade Infiltrator