God of War Ragnarok is filled with optional missions, known as Favors. Once you open up the hidden areas in Vanaheim, this will give even more challenges for Kratos to overcome. One of the first potential Favors that will pop up is Casualty of War: The Brooch, which will help a spirit recover some of its memories.
While exploring The Plains, you may see a purple glowing object on the ground, which is revealed to be half of a pendant. Picking this up will start the Favor, and will put Kratos on the path to helping this forlorn spirit in God of War Ragnarok.
Like all the missions in The Crater, you need to have completed Scent of Survival first. This is part of the quest chain that unlocks the hidden areas of Vanaheim in God of War Ragnarok. This makes it incredibly important if you want to unlock some of the best armor and power-ups in the game.
From The Crater Entrance’s Mystic Gateway, you’ll want to turn north and grapple over the nearby wall. Go Northwest from here, where there’s a small ledge to climb up. If you head due east, a glowing, purple object will be on the ground. This is where you begin this Favor in God of War Ragnarok.
Have Kratos turn around and head back toward the Mystic Gateway you went through. You’ll see the point where you grapple down, and the poison totem path. Run towards that, and you’ll see a grapple point, going upwards.
Continue forward, due east, and you’ll see a red chest and a purple glowing object on the ground. This is the other half of the amulet, but it won’t be so easy to unlock. First, face Egil the Oath Guard.
He is quite fond of using heavy attacks that can be block broke. He’s also keen on unblockable attacks. This God of War Ragnarok mini-boss is pretty easy to dodge, but be careful
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