That system sometimes was handy. If it continued to be this effective and started to help him in other things, then Ibro would find it easier to raise his power. At once, he started to summon monsters.
After the upgrade, his souls were decreased by half but he didn't bother by this matter for now. Each time he used his technique he could summon 300k skeletons.
These skeletons weren't like the simple skeletons he used to summon before. These were differentiated skeletons. They formed small units like the advanced legions that his army produced.
He felt more at ease when he observed his new skeletons. These skeletons would boost the power of his army by a lot. They also didn't need time to raise their strength.
He continued to summon skeletons without any break. He didn't remove his eyes from that tiny hole that kept widening minute after minute. Suddenly, another explosive sound appeared one after another.
