I haven't unlocked 'revive' yet, but that can temporarily bring enemies back from the dead to fight for you. You can temporarily summon death mages who, with the right rune activated, can be made to leave corpses behind when they expire. The flesh golem I mentioned can flop over dead to generate a cluster of corpses (a new one is summoned moments later). You can fuel the fluctuating corpse economy with your minions. When you're not blowing up corpses you can absorb them to recover 'essence', which is the Necromancer's mana pool. It's a grisly and fun way to focus down large enemies and hero monsters. This draws bone spears out of multiple corpses on the battlefield and hurls them at a targeted enemy. It's a testament to the breadth of the Necromancer's skillset that it is almost exceeded by a new ability called bone lance. This is immediately one of the most satisfying skills in the game, and a terrific advancement on the original Diablo 2 ability. In big fights there is a tipping point where you can start detonating bodies and sweep the entire screen clean in a bloody wave. You can then immediately target the bodies that corpse explosion leaves to create more explosions. Every corpse within the circular targeting template pops in quick succession to deal massive damage to anything standing nearby. Dead enemies leave fleshy pink torsos behind that you can detonate at range.

Corpse explosion is the Necromancer's standout ability.

Diablo 3 necromancer pc