Creating a one shot spell

[Valjean83 2]

Hey everyone.   My final boss has a spell that is very powerful. So much so that I only want him to be able to use it once. How would I go about this? 

[Black Mage 10]

Let's say that the spell requires "several condition" before it can be used.

Modify the condition into "several condition" and "switch X is false", is required.

Set that the spell will trigger a common event when used, that it turns the switch X into true.

(Basically, this is the general idea. I do aware that checking "switch X is false" for skill requirement is not there by default)

 

When the modified requirement is met, the boss will cast the spell. After that, the common event will run, turning switch X into true in the process.

Since we didn't have any condition that can turns switch X into false, we shall never met the modified requirement again. Hence the skill will be used only once.

[Valjean83 2]

Thank you very much!

[Ninjamida 65]

11 hours ago, Black Mage said:

Let's say that the spell requires "several condition" before it can be used.

Modify the condition into "several condition" and "switch X is false", is required.

Set that the spell will trigger a common event when used, that it turns the switch X into true.

(Basically, this is the general idea. I do aware that checking "switch X is false" for skill requirement is not there by default)

 

When the modified requirement is met, the boss will cast the spell. After that, the common event will run, turning switch X into true in the process.

Since we didn't have any condition that can turns switch X into false, we shall never met the modified requirement again. Hence the skill will be used only once.

 

If you want to avoid scripting, IIRC there is a condition that requires the switch to be on.

 

So you could set the switch to on in a battle event at the start of the battle, then switch it off when the attack is used.