Ethereal Key Charge

Used to open obscured chests. Earned by completing events and magic-mirror challenges and by defeating enemies that are veteran rank or higher. Disappears when leaving a map. — In-game description

Ethereal Key Charge

Effect type

Effect

Stacking

Charges

Max. stacks

25

Game link

Effect ID

78467

“

Used to open obscured chests. Earned by completing events and magic-mirror challenges and by defeating enemies that are veteran rank or higher. Disappears when leaving a map.

— In-game description

Ethereal Key Charge is an effect that allows you to open obscured chests that spawn after completing a magic mirror mini-game.

Mechanics

Gaining Charges

Method	Type		Notes
Enemies	Veteran	1	Defeating enemies under the following cases does not give charges: Veterans and Elites summoned during the event. [verification requested] Elites from Hero challenges.
	Elite	2
	Champion	3
	Legendary	4
Events	Dynamic	5	Including Rift Hunting events and Hero challenges.
	Meta event	15
Other	Magic Mirror	5	Only with  Prosperity Unending mastery unlocked.
	Lingering Magic	8	Once upon entering each Visions of Eternity map each day.

Meta events

As meta events consist of multiple enemies and dynamic events, they provide a higher total than shown above.

• Secrets of the Weald — 38+ charges
  • [Group Event] Destroy the northern Inquest excavator (80), eastern, or southern — 18+ charges
    • Additional charges from Veteran Mark IX Centurion Golems and Veteran SERVs
    • 3 charges from Champion Mark IX Centurion Golem
    • 15 charges from the event completion
  • [Group Event] Subdue Gwyllian, Seneschal of the Forest (80) — 20+ charges
    • Additional charges from Veteran enemies
    • 5 charges from [Group Event] Defeat Biomancer Plezzi (80), Golemancer Graxx, or Saboteur Dribb
    • 15 charges from the event completion
• Hammerhart Rumble! — 23 charges (15 for meta event, 2x4 from legendary enemies)

Using Charges

Chest Type	Without mastery	Efficient Magic
Small Obscured Chest	3	2
Medium Obscured Chest	6	4
Large Obscured Chest	15	10

Notes

• Other chests such as Aetherlocation Treasures, Long-Lost Keepsake Boxes, and Seer Storage Chests do not require charges to open.
• When trying to open an Obscured Chest without having enough stacks, a System Message will appear that reads "You need X ethereal key charges to open this."

Bug:

When trying to open a medium chest without enough charges, the system message tells the player to collect 6 charges, even though 4 are enough if the player has the  Efficient Magic mastery.

• Charges are removed upon changing maps in any way, such as entering a story instance or joining another instance.