Trials are a gameplay feature in Dragon Age: Inquisition, available with the Trespasser DLC. They allow the player to modify some game behaviour by either limiting/weakening the party or strengthening enemies. Having one or more trials enabled will increase your chance of receiving special shipment rewards, which can be collected from the special shipments chest in your home base.
Active trials can be configured under "Options" in the Hero menu at any point during the game. They can also be activated with the "Custom" difficulty option during hero creation for a new game.
The Trial for this Trophy is called "Walk Soflty" - Turn the trial on at any point and kill any 20 creatures, including non-hostile creatures, with "Promoted" listed in their traits in the tactical camera.
Tips:
A good way to farm this achievement is to seek out a wilderness region that frequently spawns several non-hostile creatures, such as the Level 12-15 range nugs in Emerald Graves - Great Bear Cove, and use the Tactical Camera to seek out the one(s) with the "Promoted" status.
Promoted enemies may gain one or more of the following abilities:
"Elite" status (enemies that are normally always elite, e.g. bears, may be promoted to "Boss" instead)
New attacks and abilities, e.g. archers may gain Leaping Shot and mages may gain Fade Cloak
Additional health
Additional traits:
Perceptive - allows enemies to flush rogues out of stealth
Barrier Breaker - destroys allies' barriers
Guard - enemies begin combat with a full guard bar
Random elemental resistance(s), in addition to any elemental resistances already in place
Random immunity to any status effect, in addition to any immunities already in place
Mages and Spellbinders' barriers may regenerate over time; dispel will reduce the barrier, but never completely eradicate it
Enemies that have been given additional traits but do not specifically carry the "Promoted" status effect will not count towards the achievement.
Not every enemy in a group will be given "Promoted" status with this trial enabled. On average, one enemy per group will be given the "Promoted" status, and even then the promotion is only done on an occasional basis, with no guarantee that every group of enemies will have a "Promoted" unit. However, enemies can still be given an additional trait as listed above without otherwise being labeled as "Promoted."
After killing 20 Promoted enemys, the Trophy will unlock
These Enemys also Spawn in all there DLC's.
I got mine in the Jaws of Hakkonen DLC in the last dungeon