The OP wants a scaling difficulty setting so that casual players have a chance to beat Ifrit, at the expense of not being able to get drops.

That being said, I disagree. Yoshi wants a balance between hardcore and casual. This does not mean make all the hardcore fights scaled for casual players.

It means having casual content and hardcore content.

When you make the hardcore content scale on a difficulty slider, then it takes away from the hardcore community because really, not everyone should be able to do that content unless they are dedicated enough.

Balance between Casual and Hardcore does not mean Hardcore with difficulty settings.