"These Evil Corpses can actually become stronger?"
Feeling the sudden surge of the Evil Corpses' aura, Mu Tian and the others' expressions changed again.
At the same time, they became more certain that the hidden Evil Cultivator must be a Foundation Establishment Stage cultivator.
Otherwise, even a Perfect Innate Realm Evil Cultivator would find it extremely difficult to set up such a powerful Evil Formation.
Seeing the Evil Corpses' aura continuing to increase, Mu Tian knew they couldn't let this continue.
He decided to take the initiative, striking first with a powerful Sword Qi, aiming it at the head of one of the Evil Corpses.
But in the next moment, a crisp sound made his expression turn grim.
His Sword Qi, when it struck the Evil Corpse's head, emitted a sound like steel colliding with steel.
Though it could break through the Evil Corpse's flesh, the skull was completely unharmed, instead shattering his Sword Qi.
