Guild Wars 2

The Mesmer has three traits which cause his Phantasms to cast boons, listed below. When more than one of these traits is selected they conflict and cause them not to function properly.

The effected traits are:

Duelist – Major Adept II: Phantasmal Fury (Phantasms gain Fury)
Inspiration – Minor Adept: Vengeful Images (Phantasms gain Retaliation)
Inspiration – Minor Master: Phantasmal Healing (Phantasms grant nearby allies regeneration)

Note that two of these traits are Minors (gained automatically) and in the same path. So the conflict makes the entire trait-line significantly less effective.

The actual conflicts are that Phantasmal Fury will prevent Vengeful Images from occuring at all. In addition, either trait will prevent the initial application of Phantasmal Healing. After 10s Phantasmal Healing will occur, but Phantasmal Fury or Vengeful Images will not refresh itself.

Needing to wait 10s to get the initial Regeneration tick is terrible since Phantasms are target linked and die easily. So the odds of the target or Phantasm surviving that long are slim.