Your next Lava Burst will hit up to 3 additional targets affected by your Flame Shock for 65% of normal damage.
Lava Burst burns your target for 10% additional damage over 4 sec, and after consuming Primordial Wave, your next 2 casts of Lava Burst to also hit up to 3 additional targets affected by your Flame Shock for 65% of normal damage.