First of all, to advance to 4th job/tier you must achieve level 5000. Doesn't matter if over 5000.
I will break the guide into 4 parts depending on which classes it will support. In order for this guide to load faster in your browsers, Starting from Chapter two you will have to refer to Chapter one's Images. I apologize for the inconvenience this may cause you.
If your inventory is full, leave a slot for the key. And always use your storage(Esc) when looting required items.
1. If you're a Gyrocopter, a Potm/Mirana or a Dragon hawk rider, you must kill the following and obtain their loots
1.1 You must kill the Dalaran reject and obtain his loot(he has 2 loots) the head.
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2. If you're Ezalor(Ghostform) , Warlock , Necrolyte You must kill the following and obtain their loots
2.1 You must kill the Dalaran reject and obtain his loot(he has 2 loots) the head.(Refer to chapter one image)
2.2 Kill the Faceless void mobs(not the boss) until it drops a item like this like a soulbooster from Dota(Refer to chapter one Image)
2.3 Head to the Murlocs from the upperleft from where you got the key earlier and kill the Murloc Tiderunner 'til it drops a Vial(Refer to Chapter one Image)
2.4 Head to the place where you got your item requirement for 3rd job advancement: Forgotten one, get the flag he drops when he dies(Refer to chapter one Image)
2.5 Go north of the third town, towards the area of the harpy's then to the uppermost portion it should lead you to the Rock golems with a huge metal boss at the bottom, at the lower left there should be a portal, enter it then Head right and you should see 3 gates, yes 3. Destroy them then kill the flesh golem and obtain it's loot, the orb.
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3. If you're Terrorblade/Illidan , or Treant/Ancient of the Wind You must kill the following and obtain their loots
3.1 You must kill the Dalaran reject and obtain his loot(he has 2 loots) the head.(Refer to chapter one image)
3.2 Kill the Faceless void mobs(not the boss) until it drops a item like this like a soulbooster from Dota(Refer to chapter one Image)
3.3 Head to the Murlocs from the upperleft from where you got the key earlier and kill the Murloc Tiderunner 'til it drops a Vial(Refer to Chapter one Image)
3.4 Head to the place where you got your item requirement for 3rd job advancement: Forgotten one, get the flag he drops when he dies(Refer to chapter one Image)
3.5 Head to the last town(you need to be lvl 4000 to teleport to it.) and enter the 2nd Hole(You must be level 5000 to enter it) and kill the Water God/Water Elemental 'til it drops a orb
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4. If you're Tiny/Stone Giant, Garithos/Legion Commander You must kill the following and obtain their loots
4.1 You must kill the Dalaran reject and obtain his loot(he has 2 loots) the head.(Refer to chapter one image)
4.2 Kill the Faceless void mobs(not the boss) until it drops a item like this like a soulbooster from Dota(Refer to chapter one Image)
4.3 Head to the Murlocs from the upperleft from where you got the key earlier and kill the Murloc Tiderunner 'til it drops a Vial(Refer to Chapter one Image)
4.4 Head to the place where you got your item requirement for 3rd job advancement: Forgotten one, get the flag he drops when he dies(Refer to chapter one Image)
4.5 Head to the last town(you need to be lvl 4000 to teleport to it.) and enter the 1st Hole(You must be level 5000 to enter it) and kill the Giant Wolf/Wolf God 'til it drops a orb
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