blood magic + zealot's oath?

Asked this in marauder forums but not getting an answer. Playing a crazy blood magic lightning mage marauder but BM blocking ES recovery is a major hindrance.

Was wondering if this passive combo would allow regen while casting/attacking or if BM would still block ES regen?

If by 'ES regen' you mean the regen coming from converted life regen, that will regen constantly no matter what. You still need to figure out a way to replenish your life, though - Blood Magic can kill you even if your ES is up.

If you mean the special super-fast regen that ES has naturally, whether or not you have ZO is irrelevant. It's a completely separate mechanism.

Yeah, Life Leech support, rejuv totem and healing potions will be for healing.

This is good to know though! Will have to see how this build works! Having another defence mechanism would be very helpful.