Mystic Reverb is a Tier 4 Spirit Relic that costs 6300 souls, and must be imbued onto an ability that deals damage.
Mystic Reverb
Cost
6300
Tier
Shop Bonus
+4 Spirit Power
+15% Spirit Lifesteal
+15% Spirit Resist
+15% Ability Range
Passive
6s Cooldown
Imbue an ability to apply slow in a radius around the target and deal an additional percentage of the damage dealt to enemies around the target after a short delay.