raise spectre

Before you read how to get high level spectres let me explain why you do what you do:
The level of a spectre determines how much damage and health/ES it has, so the higher the better. The level of the Spectre is determined by the level of the corpse you raised it from. the level of the corpse depends on the level of the zone (when having the map overlay active you can see the zone/monster level in the top right). So in order to have a strong spectre we want to summon it from a corpse we found or created in a high level zone (for example in a T16 map).



1. Remove the Spell Echo gem from your spectre setup. this will prevent you from reanimating the wrong corpses, put the gem back in when the process is done.

2. Go to a zone where the spectre you desire naturally spawns, the level of the zone does not matter. (for example you would go to the Solaris Concourse in Act 8 if you wanted Solar Guards.) Use desecrate at the ground to create corpses until you find the corpse you are looking for, raise it as your spectre. one is enough, you do not need more. Look below for a list where you can find which spectre.

3. Go to the highest level zone you can access, this will usually be a map. Thanks to changes to desecrate it will now occasionally create corpses of any spectres you brought with you into the zone, which is why you brought your low level spectre from step 2. now desecrate and summon the number of spectres you want (with the fully functional build that would be 4). do not forget to replace the low level guy unless you enjoy running around with that "special" spectre that deals only a fraction of the damage that the others do. ;)
To get the (to my knowledge) highest possible spectre level you need to go to Shaper's Realm, which has monster level 84. Occasionally you will find 84 Zones in T16 maps too, for example areas opened by masters like Haku, Tora or Vagan will be Level 84, Trials of Ascendancy or Abyssal Depths work too. In those Areas you will be able to get T17 Spectres too.

Important:
In order for step 3 to work you need a high level desecrate! A low level desecrate can only create corpses up to a certain level (take a look at the gem to see what level of corpse it can summon currently). a level 20 desecrate will be able to summon corpses up to level 100 (however the corpse level can not exceed the zone level so you will never be able to actually create lvl 100 corpses). if your desecrate is not on a high enough level you can socket it into a source that grants it additional levels - for example a ring with a "+X to level of socketed gems".



In case you are new to Spectres and are afraid they will die: I did multiple hundred guardians and dozens of shapers in the last league alone and not a single spectre ever died.


Zones where you can find the Spectre for Step 2:

- Cannibal Fire-Eaters:
Shore Map. Unfortunately since 3.0 there is no story zone where you can find them, the easiest way to get them seems to be using Shore maps until you find them. If you do not find a single Fire-Eater in the first ~10-15 desecrates, open a new map. Make sure the maps have no "Area is inhabited by X" mods, those will prevent Fire-Eaters from spawning (exept "by Humanoids" and "by additional Rogue exiles",those are fine).

- Solar Guards:
Solaris Concourse (Act 8)

- Flame Sentinels:
The Templar Laboratory (Epilogue)
Spoiler


- Undying Incinerators:
The Crematorium (Act 3)

- Goatman Fire-Raiser:
Prisoner´s Gate (Act 6)

- Merveil Blessed:
Any map with the "Area is inhabited by Sea Witches" Mod