decent/strong support utility perhaps for a dark one ritualist/cabalist 
- while not wanting to buff it to be a main attraction
Dark One RE/totem Ritualist as example is a nice starter char [1.1.8.1 - 1.1.9.6] Dark One's Reborn: Vitality Caster Ritualist ( 4:30m Crucible, 5:33 Naked Ex, SR 100, Ravager of Flesh, Crate, Callagadra, Mogdrogen), but you then have the option upgrading it into stronger endgame mode later
Unsure if there is/would be a comparable decent support skill for Rit/Cabbys, but i don’t think blightlord would necessitate removing the skill support, even sans modifier, as the utility is much different.
(siphon souls wouldn’t feel as great on bosses during levelling etc)