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This God of War guide will reveal how to fully upgrade the Leviathan Axe to its max Level 6.
A special resource called a Frozen Flame is required for every upgrade of the Leviathan Axe, and upgrades can only be performed at a Huldra shop.
The first four Frozen Flames required to upgrade the Leviathan to Level 5 are all simply acquired by progressing through the main story.
