Add a subrule to “Alliances” called “Nemeses”:-

Each Kaiju may have a Nemesis, being another Kaiju (or idle Kaiju), and this is tracked privately by the Attendant. Kaiju have no Nemeses by default, and being a Nemesis is not automatically reciprocal. If a Kaiju has no Nemesis, it may select one by sending a private message to the Attendant to this effect.

When the Attendant calls a meeting of the Kaiju Court, every Kaiju who has a higher Prestige than their Nemesis gains 5 Prestige, and every Kaiju who has a lower Prestige than their Nemesis loses 5 Prestige.