There are many missions in the Genshin Impact game. Among them, "The Iron Skin Viscount Officer" is a legendary boss. After defeating this boss, there will be an achievement of the same name. However, some players still don't know how to complete it. Next, the editor will bring you a detailed introduction. .
1. Players first teleport to the south direction anchor point of Elton Trench and swim to the south direction of the map;
2. Then go to the hole at the bottom of the lake and swim to the west of the map to obtain the ability of the heterochromatic heavy-armored crab;
3. Then find the boss next to you, and first keep a distance from it to observe its skills;
4. Long press the combat skill and wait for anything thrown to hit the character;
5. Aim at it and release your combat skills, rebound its skills ( generally, you can defeat it by rebounding its skills 5 times ), and wait until you defeat it to obtain the achievement [Iron Viscount].