If Kratos' weapons are starting to feel weaker and like they're falling behind the enemies you're facing, upgrading the Leviathan Axe and Blades of Chaos is the solution. Both weapons can be upgraded all the way to Level 9, and the boost in raw damage makes a big difference against the game's toughest bosses and late-game enemies. To upgrade to a higher level, you'll need eight Frozen Flames for the Axe and eight Chaos Flames for the Blades. Most of these come from story bosses you'll fight no matter what, but a few requires doing optional fights and side content. Here's exactly where to find every single one, so you can get your weapon stronger to face strong enemies.
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How the Weapon Upgrades Work
Both the Leviathan Axe and Blades of Chaos default levels are Level 1, and each Frozen Flame or Chaos Flame you collect upgrades it and levels it up one by one, capping out at Level 9 once you've gathered all of them. You can bring these materials you collected to Brok or Sindri's workshop to apply the upgrade, and doing it will boost your overall equipment level as well as the raw damage output of that weapon. If you ever miss collecting one after a boss fight, don't worry as the item gets automatically placed in a blue chest at the blacksmith, so nothing is permanently missable.
All Frozen Flame Locations (Leviathan Axe Upgrade)
Frozen Flame
Frozen Flame 1
A guaranteed story reward. The Huntress is fought during Mission 1, "Surviving Fimbulwinter," and her defeat drops the first Frozen Flame.
Frozen Flame 2
Another guaranteed story reward, drops after taking down Alva during Mission 4, "Groa's Secret."
Frozen Flame 3
Defeating Nidhogg during Mission 6, "The Reckoning," drops the third Frozen Flame.
Frozen Flame 4
Rather than a single boss kill, this one is pieced together from six Frozen Sparks earned by sealing every Hel Tear scattered around the world. Collect all six and they merge into a complete Frozen Flame.
Frozen Flame 5
During Mission 12, "Reunion," you'll need to defeat a sword-wielding knight standing between you and a wheel that opens a gate forward. He's not a named boss, but the fight is mandatory, so the flame drop is guaranteed.
Frozen Flame 6
Beating the Flame Phantom during Mission 16, "The Summoning," drops the Frozen Flame.
Frozen Flame 7
This one comes from clearing the Berserker Gravestone fight against Svipdagr the Cold and the Sisters of Illska, tucked into The Barrens region of Alfheim, an optional side encounter rather than a story requirement.
Frozen Flame 8
The final Frozen Flame is tied to an optional dragon fight against Crimson the Dread, found in The Plains area of Vanaheim once you've picked up the "For Vanaheim!" Favor.
All Chaos Flame Locations (Blades of Chaos Upgrade)
Chaos Flame
Chaos Flame 1
The first Chaos Flame comes from defeating the Dreki mini-boss during Mission 2, "The Quest for Tyr." Guaranteed drop as part of the story.
Chaos Flame 2
Also tied to Mission 6, "The Reckoning," defeating the Forest Ancient drops the Chaos Flame automatically.
Chaos Flame 3
The Frost Phantom is fought during Mission 9, "The Word of Fate," and is another unmissable pickup once he's defeated.
Chaos Flame 4
You'll face a pair of Drekis this time around during Mission 13, "Creatures of Prophecy," and clearing them both rewards the Chaos Flame.
Chaos Flame 5
A two-boss fight against the Soul Eaters during Mission 16, "The Summoning," drops the fifth Chaos Flame once both enemies are defeated.
Chaos Flame 6
Clear the first six trials in Muspelheim, then head to the Nornir Chest in The Crucible to claim the Chaos Flame as your reward.
Chaos Flame 7
An optional Berserker Gravestone fight against Haklangr the Bearded, located in The Sinkholes region of Vanaheim.
Chaos Flame 8
Similar to the Hel Tears, this final Chaos Flame is built from six Chaos Sparks, each earned by clearing a Draugr Hole encounter. Gather all six and they combine into a complete Chaos Flame.
Tips While Collecting
Five of the eight Frozen Flames and five of the eight Chaos Flames come directly from mandatory story bosses, so simply playing through the main story run will hand you the majority of the flames without any extra effort. The remaining flames require chasing down optional Favors and side contents, like the Crimson the Dread, Svipdagr, the Crucible Challenges, and Haklangr, none of which are available until you unlock the right region or complete specific story triggers, so don't worry if they don't show up on your map immediately. The Hel Tears and Draugr Holes are the most time-consuming pieces simply because they're split into six separate fragments each, spread across multiple realms, so it's worth doing them gradually while you explore rather than doing all twelve at once.
Conclusion
Upgrading both the Leviathan Axe and Blades of Chaos in God of War Ragnarök comes to a mix of main story progression and a handful of optional side contents. Focus and enjoy with the main story for the majrity of the Frozen Flames and Chaos Flames, then you can go back for Crimson the Dread, the Berserker Gravestones, the Crucible Challenges, and the Hel Tear and Draugr Hole fragments once you've got access to explore each realm freely. With all sixteen flames, Kratos's two best signature weapons will be sitting at their maximum upgrade which is Level 9. Your friends or family haven't experienced God of War Ragnarok yet? Gift them a God of War Ragnarok Steam Key on LootBar now for discounted prices!
