I'm only using Fiends with Verata's Sacrifice. On my own, extra minion heals are too much of a mana sink - but with a Healing Spring trapper looking after them too, that's really good healing!
BotM and Heal Area are relatively mana inefficient next to those other two skills. They work though.
For purposes of aggro management I don't use melee minions... they can pull in too many enemies unnecessarily. I like Fiends, but they're expensive.
I also like Consume Corpse for when things get really rolling. A big army makes more corpses than you can raise quickly, so I consume the surplus for life and energy (cost 10, gain 105 life, 21 energy @ 16 Death). Always remember that waiting around for mana makes your minions degen faster and faster... consume what you can't raise in good time and keep the pace up!
Consume Corpse is also great to deny enemy necros a corpse - an enemy Well of Suffering is not kind to minions, so you might need to counter it.
There's loads of other little tricks too, but well, you can find them yourself
