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In Mortal Shell II, Mether’s Pulse is a refillable healing item. A reviewed guide reports that you unlock it after claiming your first Shell, refill its uses by resting at a Beacon, and improve it with two distinct items: Revered Glands add uses, while Synaptic Vessels increase the healing from each use. Beacon rests also revive regular enemies in the area, so using one has a cost.

How to unlock Mether’s Pulse

Nerd’s Chalk reports that Mether’s Pulse becomes available after you claim your first Shell, alongside the first Weapon and Sidearm. This trigger is reported by a secondary guide and is not independently confirmed by the available sources.

How to refill it at a Beacon

Rest at a Beacon to restore Mether’s Pulse to its current maximum number of uses. The guides say it does not regenerate passively while you are away from a Beacon.

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A rest reportedly restores health and Resolve, but also revives regular enemies in the area. Bosses remain defeated. Consider that trade-off before resting just to refill a charge, especially if you have already cleared nearby enemies.

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Mortal Shell II - PlayStation 5
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What the upgrade items do

Item Reported effect Choose it for
Revered Gland Increases the number of Mether’s Pulse uses available between Beacon refills. More separate opportunities to heal before returning to a Beacon.
Synaptic Vessel Improves the healing effectiveness of each use. More healing value from each charge.

The reviewed sources do not establish exact increases in charges or healing, so there is no reliable numerical comparison. Both items are reported as overworld loot. The guides also report that Merrick at Marrow Keep sells limited quantities, but do not establish a dependable quantity, price, or availability.

How to apply an upgrade

  1. Bring a Revered Gland or Synaptic Vessel to a Beacon.
  2. Select the Mether’s Pulse option.
  3. Spend the item on either capacity or healing effectiveness. Merely carrying an upgrade item does not apply its benefit.

Which upgrade should you choose?

There is no source-supported universal best order. Choose a Revered Gland if you value having more chances to heal between rests; choose a Synaptic Vessel if you prefer to get more healing from each use. The guides do not provide enough numerical or build-specific information to say one is always better.

“Mother’s Pulse” and other spelling searches

The item is spelled Mether’s Pulse in the reviewed game reference. “Mother’s Pulse” is presented in one guide as a mistaken spelling, not a separate item. Use Mether’s Pulse when looking for the healing item.

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Source and version limits

The mechanics above come from secondary guides and an unofficial fan-made database, not a publisher-confirmed document. The available sources do not identify a game version, platform, or region for these details. Treat the unlock trigger, Beacon effects, and Merrick’s reported stock as guide-reported information rather than guaranteed behavior across every version.

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