Bombs

Just as the high-level combatants from both sides were fiercely engaged, another massive explosion erupted in the distance!

Several mutated birds were instantly blown apart, their bodies shattered and falling to the ground.

It was yet another preparation made by Shaun.

Regular zombies had a hard time posing a threat to mutated birds.

Unless he used lives to deplete their stamina.

Even if they won, the zombies across Giantwood Province would probably suffer severe casualties, losing 70 to 80 million in numbers; the cost was just too enormous.

Even more crucially, the stalemate between high-level zombies and mutated plants wouldn't last much longer.

If the high-level zombies died out as well, that would be a truly massive loss for Shaun. To make use of the characteristics of regular zombies, he directly purchased a large number of tech bombs.

Due to insufficient funds, he could only afford these relatively low-grade bombs.