Weird
Before they could move, Theo and the monkey took down a few more people. Eventually, they were truly scared to the point they leaped to the wall, trying to escape from the top.
However, Isaac used his Gravity Skill and sealed their movements, pulling them back down. After that, Theo eliminated every single one of them without hesitation.
Theo might rarely kill people, but it didn't mean he wasn't able to kill them. He simply had no need to eliminate them since others would take care of them.
Now that everyone wanted to keep them alive for him to use his Illusion Skill, he decided not to waste his time and kill them.
"Wait, Joker!" Isaac shouted, trying to stop Theo from killing the last few assassins. With their current strength and number, they should be able to suppress these few assassins.
But Theo had no sign of stopping and eliminated all assassins.