Eliralis

In the final version of the map, at the end of the second month, a blue Necromancer breaks through the gates (I myself was playing as a Barbarian) with a high difficulty level. After that, the Barbarian suddenly receives 24 Cyclops, 72 Wyverns, etc., in his army, and the order increases by five levels, and all stats increase significantly: 34, 20, 9, 18. The Necromancer's difficulty level becomes medium. He then deliberately runs to capture the castle. Is this intentional or a bug?