Skip to around 19:30 as a safe spot where he gets into the Val'kyr. Summary below.
Unborn Val'kyr Spawning Conditions
(Confirmed by @Mumper during Interview at MMOreporter)
- Random set of spawns across all of Northrend, no set spawn points/areas at all.
- Nothing to do with Rare spawns or their locations.
- Players can slightly affect the spawn time/location of another Unborn Valk'yre by catching a wild one. (@Mumper did not clearly state what this means)
Unborn Valk'yre Unique Animation / Ability (out of pet battles)
(Confirmed by @Mumper during Interview at MMOreporter)
If a player has an Unborn Valk'yre summoned out of a pet battle and they run by a dead critter (not a battle pet), the Unborn Valk'yre will resurrect the critter!
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Documented on wowhead so we can clear up the craziness we have all been going through trying to figure it out, lol.