Charm
Does it lure characters to your side?
There are two...six difficulty levels.
Which charm are you talking about? One that lasts for 2-3 turns, until the end of the battle, or until the end of the game?
The first is levels II - III. There may be a range limit if it's level II, and no limit if it's level III.
The second is levels IV-V. There may be a range limit if it's level IV, and no limit if it's level V.
The third is level VI. Here, there will be a limit on the number of minions that can be made static, or it can be tied to, for example, upgrading beauty.
Barter
Discount on goods? Extra payment for completed quests?
Inspiration
Some buffs for allies. Let it cost an action so that the effects are more powerful, since the character is not intended to be a combatant?
The same question applies to these. And there may be approximately the same restrictions.
Небо – угроз не слышит
Небо – ведёт особый счёт
Небо – тебя найдёт