Revival Elixir Combination Valuables Used to Instantly revive the selected Resonator. Can only be used once every 60s. (Only effective for your own Resonators in Co-op Mode)

Combination Revival Potion [Effect] Stabilizes the Resonator's condition to a certain extent and aids in their recovery. [Precautions] Long intervals between doses are recommended. Excessive use within a short period is not advisable. [Warning] Prohibited to use in combination with the same type of potion or any frequency stabilizing potions.
Sources
Daily Quests