[SPOILERS] God of War - Why Fight It? Trophy Guide - Fully upgrade the Blades of Chaos [Bronze]
To fully upgrade the Blades of Chaos / Chaos Blades, you need Chaos Flames, a type of crafting component. Level 5 is the maximum for the blades.
After retrieving the Blades of Chaos you keep getting Chaos Flames from Story bosses. This is unmissable. Even if you fail to pick them up they will be added to the "Lost Items" section in the shop.
By just beating the story you can get the blades to level 4. So after the story you're probably wondering how to get that last level-up.
It's actually hidden in the Shop under "Buy" - "Resources". There you can exchange the Raging Inferno of Muspelheim for the last Chaos Flame.
Where to find Raging Inferno of Muspelheim:
It's dropped by the only Valkyrie on that map. To get to her you must beat all the trials leading up the mountain. Therre are 5 trials and you need to play each one twice to open the gate to the next trial. The Valkyrie is like the endboss in that area.
After looting the Raging Inferno from her, return to a shop and exchange it for the Chaos Flame. Then you can buy the last upgrade.
To unlock Muspelheim you must find Language Cipher Chests. If you need help with that, check out the guide on how to unlock Muspelheim: https://www.youtube.com/watch?v=2qwGNUap5Sw
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