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BOOOM!
BOOOM!
BOOOM!
My Undead Walls were ultimately destroyed, as their HP reached zero, I swiftly ordered them to use [Self Destruction], the three I had created alongside the biggest one all exploded, generating an enormous shockwave of energies which took down dozens of Undead, so many that most of our front was cleansed.
Although there were still around a bit over a hundred left, even the Rotting Giants were falling, half of them were already destroyed by the combination of Erdrich's monstrous physical strength and Elizabeth's holy magic, while Eric dedicated himself to support us with his entangling vine arrows and healing magic, which he was becoming progressively better as a Druid, especially his buffing magic.
Check "The Protagnist's Sister Is Actually the Strongest"!