PSA: There's a Blessing of Kamasylve/Sealed Book of Combat in Pearl Store for 1 Loyalty each : r/blackdesertonline
Experience Buffs in Black Desert Online - Saarith.com
You can now talk to the black spirit to get either a 20% combat exp buff or 8% skill exp buff that last 30 minutes for 50 energy each. : r/blackdesertonline