Viridian Set is a level 35 armor set for Mages and Prophets.
Set Bonus:
The Hood can be crafted in the Tailoring profession at skill level 35. The needed components include Temple Remnants.
The other set pieces may be won from boss loot in the Temple of the Three group instance, or bought with Temple Relics from the light armor relic vendor in the Order of Life HQ.
Without drops 125 relics and 15 remnants needed for full set.