The revenants and the ghouls were nothing like the zombie horde. Not only were they much faster and stronger, they were also vaguely intelligent.
They didn't mindlessly lumber forward into traps or into Thor's [Lightning Zone]. They were smart enough to go around the visibly dangerous areas at the very least. Plus, they had good enough senses that they did at least attempt to defend themselves against the thrown spears.
The silent battlefield became suddenly deafening as the Revenants began to leap the moat and clash with the Orcish defenders. Blades met claws or the corroded blades left from the Revenants' past lives, and Lotus increased the radius of her Tree of Life effect to spill out over the moat.
Like Thor's [Consecrated Ground] ability, simply standing in the aura was enough to damage and destroy the invaders, who were not all durable enough to endure.
