A new potion type that would pause but be hard to get.

It could be called the useful potion (ether like the award potion or like the lingering potion). The useful potions timer would pause when its not being used. This would be useful for potions like the fire resistance potion, the water breathing potion or the regeneration potion. It could be made when a normal potion is brewed with a rare meatal, like gold or even diamonds. Posibly gold nuggets if a full bar is too much. It could possibly not have Redstone added for more time and only glow stone or no additions altogether. It could be made into a Usefully splash potion or lingering potion or arrows.