Echo of a Lost Soul

So Healer Priests get only 2 runes this phase, while Shadow gets 4.
Considering out of the 3 Priest specs, 2 are for healing while 1 is for dps, that already looks bad.

Now one of the runes requires Priests to kill a mob. Mob has very low health, just need to pop his shield and kill it.

Problem: mob isn’t spawning.

Been camping the spawn location at Swamp of Sorrows for almost an hour. Hasn’t showed up yet.

the echo only spawns at night, look it up.

The other rune thats locked behind paying a warlock/mage is way more infuriating.