New effect that pauses other effects. "Stasis"

Essentially, the effect could be useful for freezing other effects until it runs out. For example, if I had fire resistance for 3 minutes and used stasis for 10 seconds, it would pause the timer on fire resistance until the stasis were gone. I think it should be kept to short timings if it were able to be brewed, since it could be extremely useful in scenarios (like the regeneration after eating a notch apple, for example). I think it could also be useful for locking your effects, preventing new effects from being inflicted onto the player. For example, you could drink it right before you're going to be struck by an elder guardian to prevent the mining fatigue from being inflicted, or drink it before fighting a wither skeleton so you can avoid the wither effect. As a downside, it could also prevent you from gaining any effects from potions, but it could likewise be applicable for things such as throwing a lingering potion of harming so that it doesn't hurt you, or make it a bit safer to collect dragon's breath.

I think it might be interesting for a potion effect. That said, I hope this brought to light a very good idea, as for how to obtain it I think someone else might have a better idea. The best I could come up with is something like using a cobweb in the brewing stand (since those are sticky, and slow you down, lol) on an awkward potion. The functionality of it that prevents other effects from being inflicted could also be locked to level II of the potion by using glowstone, but as a downside it couldn't be extended. I expect the upside to it (like using level I to just get the extending effect) would come at the cost of also extending things like poison or weakness by accident. Perhaps witches could use the effect before throwing weakness or poison as well.

Suggestion for icon would be an icon of a potion with a pause symbol next to it.