G'huun calls forth 3 Bursting Boils. Each boil explodes after 8 sec, inflicting 50 Shadow damage and an additional X Shadow damage every 2 sec for 30 sec to the 2 targets closest to the boil.
Any player reaching 2 stacks of Bursting Boil becomes an unwilling thrall of G'huun, attacking their allies until they are slain.