Greetings,
I have been leveling a poison-ailment based build, and i was disappointed to discover that the Plaguebringer's passive node Horde's Vitality does not increase the duration of green globes generated by it's adjacent major node Undertaker. If it is intended that only green globes generated from dead summons have a 10 second duration, and the Horde's Vitality node is not bugged, then my suggestion is to apply the +5 second duration from Horde's Vitality to green globes generated from enemies as well via the Undertaker major node. This will increase the value of the major node and allow the two green globe nodes to benefit a wider range of character builds instead of favouring a summoning based build that also involves sacrificing the summons frequently.
Additionally, because major archetype nodes appear to be intended to create build specialisation, i also suggest changing the functionality of green globes to multiplicatively increase only toxic and poison damage, instead of adding bonus damage to all attacks and spells of any damage-type.