Utgarde Keep is a dungeon whose entrance is located in Howling Fjord in the World of Warcraft game. The level range for the normal dungeon is 68-72. The instance was released in the Wrath of the Lich King expansion. The dungeon contains 3 bosses. The end boss of Utgarde Keep is Ingvar the Plunderer.
Utgarde Keep is one of the first dungeons that you will encounter when you arrive in Northrend. The other dungeon is The Nexus which is on the other side of the Continent. Utgarde Keep should not be confused with the level 80 dungeon, Utgarde Pinnacle which is on the other side of the great citadel. It is a small dungeon populated by Valkyrs and undead and shouldn't prove too much of a problem.
Prince Keleseth stood be engaged after you have killed the four Val'kyrs sitting down at the table. When you engage him, he will call upon his follower skeletal minions to launch and attack to help him. You need to need to avoid his attacks and the minions and kill the Prince. He's an easy boss and shouldn't prove too much of a problem.
These are two bosses who attack at the same time. If you kill Skarvald first, he will come back as a ghost and continue trying to kill you until you have killed Dalronn. Its a case of tank and spank, there are no other adds for you to worry about.
Its a two phase boss encounter, in the first encounter, you need to just tank and spank. When Ingvar is killed, you need to hide behind a pillar otherwise he could one shot and kill you. Once Ingvar has been turned into an undead, you run out and attack him. There are only two phases here so it should be easy kill.