Proto Spark
Effect
Proto Spark saves Mina from death once and revives her with half health. The effect becomes available again after Mina dies and the attempt resets.
Location
Queensbury Crypt — obtained by completing the Duke questline, which includes finding the Duchess.
Best Use
Proto Spark is most valuable during difficult boss attempts, long combat sections, and unfamiliar areas where a single mistake would otherwise end the run. It acts as a safety net rather than a direct damage boost.
Is Proto Spark Worth Using?
Yes, especially while learning a difficult encounter. More confident players may eventually replace it with an offensive Trinket, but the extra life can be more valuable than a small damage increase during progression.