Been playing around with an idea...for 10mins. The Necromancer.

[Roxas_Andrade]

In theory, SMN is kind of a Necromancer, with attacks like Bio, Miasma, Fester, Energy Drain and such.
Also, Resurrection is a way to 'control' death. If you consider that you only summon versions of primals you've defeated, you have a skill to bring an ally from the dead...

I guess SE only named it Summoner because of the appeal the name has, and because a death-related class wouldn't suit well to a 'warrior of light'. But now we have DKN, so I don't know what to say... I'd like to see this job either. ^^

[dejiko_san]

If you read up on 1.0 lore or was around to play it, there were actual necromancers.

They tried to resurrect a spy in Ul'dah to get to the information he learned before he died.