Although it was Kesiah and Gael who set up the trap, Kyran was the one who created it.
Simply put, the trap was a pre-made array formation that Kyran specifically modified to deal with the Legendary-level Knights.
'My minions will commence with the plan in one minute. Get ready,' Gael told them and returned to the shadows.
Kesiah and Gaham's task was to lure the Legendary-level Knights, while Gael would have to focus on subduing the five Arch Magus with Space-based Divine Armaments before dealing with the rest.
Kyran had placed the most troublesome task of the operation on Gael's shoulders. However, that was only the case if he was alone. With the assistance of his Shadow Minions, Gael could accomplish his task, so long as Kesiah and Gaham succeeded in luring all fifty Legendary-level Knights into the trap.
'It's time,' Gael told his minions.