How to use Lost Energy Blocks in Genshin Impact – In the Name of Anfortas

While looting from sparkling spots in Sumeru's rainforests, you might have picked up a few Lost Energy Blocks, which are Quest Items used to load Damaged Ruin Guards. By finding 15 Lost Energy Blocks and using them to load five Ruin Guards, you'll unlock a hidden Wonders of the World Achievement called In the Name of Anfortas.

How to load Damaged Ruin Guard with Lost Energy Blocks in Genshin Impact

Lost Energy Blocks can be fed to five Damaged Ruin Guards all over Sumeru. However, you must first look for a nearby Dendro Rock and break it to reveal a non-hostile Ruin Scout. It will act like a Seelie that will guide you to the location of the Ruin Guard and then spawn two Ruin Sentinels. After defeating the enemies, you can loot an Exquisite Chest and feed the Lost Energy Blocks to the Ruin Guards.

You can complete the below puzzles in any order. It costs three Lost Energy Blocks to load up each Ruin Guard. Once you're done with all five, you'll unlock the Wonders of the World Achievement called In the Name of Anfortas.

Vimara Village

Head to the area circled in the image above to find an Auspicious Branch and a Dendro Rock. Interact with the Auspicious Branch to summon Dendrograna, then attack the Dendro Rock with a Charged Attack to break it. A non-hostile Ruin Scout will appear.

You need to follow the non-hostile Ruin Scout back to the Damaged Ruin Guard pictured above. Once you're in the vicinity, two Ruin Sentinels will spawn. Defeat them to obtain an Exquisite Chest. Then interact with the Ruin Guard and select Load to feed it three Lost Energy Blocks.

Related: Genshin Impact Garcia’s Paean Key Items Sumeru Daily Commission guide

North of Port Ormos

Head to the area circled in the image above to find a Withering Zone (assuming you still need to clean it up). However, you don't need to eliminate Withering for this puzzle. Instead, interact with the nearby Auspicious Branch to summon Dendrograna, then attack the Dendro Rock with a Charged Attack to break it. A non-hostile Ruin Scout will appear.

You need to follow the non-hostile Ruin Scout back to the Damaged Ruin Guard near the water. Once you're in the vicinity, two Ruin Sentinels will spawn. Defeat them to obtain an Exquisite Chest. Then interact with the Ruin Guard and select Load to feed it three Lost Energy Blocks.

Southwest of Devantaka Mountain

Head to the area circled in the image above to find an Auspicious Branch and a Dendro Rock near some cliffs. Interact with the Auspicious Branch to summon Dendrograna, then attack the Dendro Rock with a Charged Attack to break it. A non-hostile Ruin Scout will appear.

You need to follow the non-hostile Ruin Scout north until you reach the Damaged Ruin Guard half-drowned in the water. Once you're in the vicinity, two Ruin Sentinels will spawn. Defeat them to obtain an Exquisite Chest. Then interact with the Ruin Guard and select Load to feed it three Lost Energy Blocks.

Northeast of Devantaka Mountain

Head to the area circled in the image above to find an Auspicious Branch and a Dendro Rock in front of a cliff. Be careful, as the cliff has many folds, and some look very similar—make sure to head to the exact one pictured above. Interact with the Auspicious Branch to summon Dendrograna, then attack the Dendro Rock with a Charged Attack to break it. A non-hostile Ruin Scout will appear.

Next, follow the non-hostile Ruin Scout until you reach the Damaged Ruin Guard beside a rock. Once you're in the vicinity, two Ruin Sentinels will spawn. Defeat them to obtain an Exquisite Chest. Then interact with the Ruin Guard and select Load to feed it three Lost Energy Blocks.

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Southeast of Devantaka Mountain

Head to the area circled in the image above to find an Auspicious Branch and a Dendro Rock in front of a cliff. Be careful as the cliff has many folds, and some look very similar—make sure to head to the exact one pictured above. Interact with the Auspicious Branch to summon Dendrograna, then attack the Dendro Rock with a Charged Attack to break it. A non-hostile Ruin Scout will appear.

Next, follow the non-hostile Ruin Scout southward until you reach the Damaged Ruin Guard against a tree. Once you're in the vicinity, a Ruin Sentinel and a Ruin Drake: Skywatch will spawn. Defeat them to obtain an Exquisite Chest. Then interact with the Ruin Guard and select Load to feed it three Lost Energy Blocks.

What is the meaning of all Damaged Ruin Guard codes in Sumeru?

After feeding each Ruin Guard with Lost Energy Blocks, you'll unlock five codes:

• Records: Code "Fehu": ".2-.1.-1..1-2.1-1.2-.2.-"
• Records: Code "Uruz": ".1-..1.-.-.1-.2-.2-1.1-2-.-.3-..."
• Records: Code "Thurisaz": "-..1-..1.-.3-...1-1.2-3-2-2.-.."
• Records: Code "Ansuz": "1-1.2-....-..1.-2-....-.2-.1..-1.-"
• Records: Code "Raidho": "1..1-....-..1.-2.-."

These have been deciphered and broken down by talented HoYoLAB user Holou, alongside other Ruin Guard codes found in other parts of the game. It was broken down as follows:

• The codes were merged together in alphabetical order based on the Futhark runes that date back to the Germanic culture (the Records above are listed alphabetically—Fehu first and Raidho last).
• Dashes must be converted to spaces, while numbers must be converted to their equivalent in dashes (i.e., the number 2 converts to two dashes --).
• From there, the message can be deciphered in Morse Code or the Vigenère cipher using the key ANFORTAS.

The fully-deciphered message reads: We Schwanenritters have fought to the last one.

Check out our guide on How to unlock the Song of Night and Dawn hidden Achievement in Old Vanarana in Genshin Impact and Genshin Impact Good Medicine Is Hard to Come By Sumeru Daily Commission guide to unlock more Sumeru Achievements.