To obtain the Crest of Desperate Heroics Amulet Enchantment in God of War: Ragnarok, you must finish the “Casualty of War: The Brooch” side quest. This guide includes a complete walkthrough for finishing the “Casualty of War: The Brooch” Favor in God of War: Ragnarok.
The “Casualty of War: The Brooch” will only be available as you finish the “Scent of Survival.” In order to complete the quest, you need to find the second half of The Brooch.
Go to the south side of the Eastern Plains Celestial Altar to find the second half of the brooch. The hint for the exact location is: go across the gap. It’s not that easy, though — when you reach try to reach the area, the “Egil Oath Guard” will be there waiting for you. So take him down if you want a chance to find those lost pieces of the brooch.
Egil is especially known for its large, unblockable attacks, so you need to be extra careful when fighting him. In addition, most of his attacks will follow you, so always be on the lookout and ready to dodge. One attack that you need to be extra careful of is the slam. If you are caught under this attack, it will eat up all your health and therefore dodge it.
If you’re up against a Jorgen and your stun won’t work on him, try using the runic attacks combo instead. The Spartan Wrath will keep him stunned so that you can get in some serious hits. You can also ask your companion to help you and attack together. If you find yourself lacking in some attacks, use dodge to keep yourself safe and get hits where you can. Be especially careful of his frost attacks. You can claim the “Second Half of The Brooch” after defeating the Egil.