But here, it will be possible to write a new active ability for creatures if their number is increased.
Table_CreatureAbility_CombatAbility175 is the limit for the number of creature abilities... is it possible to add new functionality using scripts?
P.S.
The file GameMechanics\RefTables\UndividedSpells.xdb contains all the spells:
there are SPELL_ABILITY_CUSTOM1 ... SPELL_ABILITY_CUSTOM4, and the esteemed comrade Dyrman uses three out of four CUSTOM_ABILITY for heroes in NHF (Valafar, Nergal, Biara), you know that... so, if you add a few more up to SPELL_ABILITY_CUSTOM9, will you be able to add new functionality to them?!

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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1