Temporary HP/Shield Skills?

Hello.

I was brainstorming some ideas for some skills, and one in particular is the creation of a 'shield' that would take a bit of damage, and then fade away after it had taken enough hits. I'm not sure if this is possible without the use of a custom made plugin to grant something temporary hit points to act as the 'shield', but it's worth a try to ask if it's possible with the likes of the Yanfly plugins.

It's not possible without a script, but I've got something similar to that set up in my game until something better comes along.

Create a state that gives the player/enemy a buff that reduces physical and/or magical damage to 0% (I believe it's under the x-parameters), and have it be able to be removed by taking damage.

Not the best, and there's no way to really scale it, but it's probably the best option until a script is made.

Thank you for the suggestion.

Is there any way I could possibly have the buff 'stack'? The skill is tied to a variable that slowly increases during battle. I was thinking when it reaches a certain threshold, the ability would be able to stack, allowing it to take two hits instead of one, with the set up you have in mind. Is that possible, or would that too also need a plugin?