Keystone Signet

Acquisition
Signet of Capture who will teach this skill before it is unlocked:
 * Rune Ethercrash (Spearhead Peak)

Usage Notes

 * Keystone Signet does not recharge a Resurrection Signet. It only recharges signets that normally recharge over time.
 * Consider pairing with long recharging signets, like Hex Eater Signet.