Choose a compatible Relic, then craft it
Craft a Relic through Golden King's Continue [Craft Relics] dialogue, then equip it on a compatible unit and confirm it in the unit's displayed information. Choose by damage type first: Mirrorblade and Endless Blades fit Physical attackers, while Infernal Gaze needs a matching elemental roll.
Relic effects, restrictions, and materials
| Relic | Effect or unit fit | Materials or acquisition route |
|---|---|---|
| Mirrorblade | Physical and critical bonuses, plus a repeated-strike effect. Restricted to Physical-damage units. | 10 Relic Shards and five Demonic Spellbooks; craft through Golden King. |
| Endless Blades | Penetration, critical, and Physical bonuses. Restricted to Physical-damage units. | 10 Relic Shards are listed in its recipe; check the crafting dialogue for the remaining requirements. |
| Infernal Gaze | A rolled elemental damage bonus. Match its element to the recipient's attacks. | 10 Relic Shards are listed in its recipe; inspect the resulting roll before assigning it. |
| Sting Nail | 20% more critical damage for Physical units. | ![]() Trade for Sting Nail rather than collecting crafting ingredients.Playing this video connects to YouTube. |
| Mermaid Crown | Water-damage hits reduce the enemy's Magic resistance. | — |
| Time Piece | A Magic Relic option for a Magic attacker. | — |
Craft a Relic and check the equipped unit
- Pick the recipient before farming. Check whether it deals Physical or Magic damage, then match any elemental bonus to the attacks it actually uses.
- Talk to Golden King and select Continue [Craft Relics]. Review the desired Relic's recipe before committing your materials.
- Collect the ingredients for that recipe. Mirrorblade requires Demonic Spellbooks as well as Relic Shards, so collecting shards alone does not finish that craft.
- After crafting, inspect the actual bonuses before choosing the final carrier. Infernal Gaze's elemental roll should match the recipient's elemental attacks.

Open your bag and use the Relics filter to locate the Relic you want to equip.Playing this video connects to YouTube.
- Equip the Relic on a compatible unit, then inspect the unit's displayed information. Check the equipped Relic entry separately from the Artifact entry.
Relic crafting also costs gold. Build your supply through the battle pass, selling spare units, or challenges that explicitly offer extra gold. Keep your intended craft in mind before spending that gold elsewhere.
Farm Relic Shards in Sacred Planet
Relic Shards come from Sacred Planet's Raid: The Genie and Raid: The Pure Form. The Genie offers a chance at a shard, while a successful Pure Form clear guarantees a shard. If your team can clear Pure Form reliably, make its guaranteed reward your farming target.
Match the bonus to the attacks you use
Mirrorblade and Endless Blades belong on Physical-damage units. Do not spend their materials expecting to equip a purely Magic attacker. For a Magic unit, consider Time Piece while comparing the bonuses you already have.
Mermaid Crown rewards Water-damage hits by reducing the enemy's Magic resistance. Choose a carrier that can actually deal that Water damage. Think about the attacks triggering the effect before choosing the unit you want to support.
Infernal Gaze's fire effect doubles burn duration. That makes a unit that applies burn a sensible recipient for that effect, but inspect the rolled elemental damage bonus as well. The burn effect and the elemental match both matter when deciding who should carry it.
Read your own roll before crafting again
A Mirrorblade example has 3% Physical damage and 11% Physical critical chance, with the next strike guaranteed to crit after every four strikes. Another copy triggers after every five strikes. These examples show why you should inspect your own Relic rather than treating another copy's bonuses as fixed stats.
Relics can have randomized rolls, so crafting the same Relic again does not guarantee the result you wanted. Get a usable match for your unit before committing to repeated crafts. If the bonus already serves the attacks you use, consider saving your materials for another unit instead.
Keep Relics separate from unit Artifacts
Relics provide equipment bonuses and special effects for eligible units, while Artifacts are unit-specific upgrades. Pop Green is Captain God's Artifact, so keep its upgrade separate from your Relic choice. Inspect the unit's displayed information to see its equipped Relic and Artifact separately.