make wraithlord viable

Right now, wraithlord is a dead item because all minion builds will use a combination of spectres/zombies/animated guardian/srs/absolution. Seriously, you cannot find a spectre only build on poe.ninja.

What I think is wrong:

I'm not a highly skilled player but from the looks of it, the theme of wraithlord is to have some kind of attack/spell gem as your main damage dealer while having spectres as a backup minion to support you (probably with curses or ailments).

However, this doesn't work in practice because without heavy investment into minions, spectres are extremely squishy, the scaling makes them unviable in the late game, desecrate makes it difficult to maintain spectres if they die mid fight, and their damage pales in comparison to other minions.

On the other hand, heavy investment into minions already means any minion build will not give up their AG/absolution/zombies for spectres, thus further reinforcing the infeasibilty of this item.

Proposed change:

Change +2 to level of socketed minion skill gems to +2 to level of all raise spectre skill gems similar to bones of ullr (I would even argue for +3 to level since its scaling is very weak). This will fit more thematically with the focus on spectres while opening up the possibility of a minion build to go all-in on them.