Potions

Imagine being able to use a command called "/potion" to give you an experimental potion (in place of the uncraftable potion). this will allow custom potions like slowness and poison at the same time for example. this could be used to experiments or even just downloadable maps. Fertilizer potion that effects the surroundings would be a nice feature as well. being able to use dispensers to do actions like mining. the way you can probably brew it would be by putting bonemeal in a brewing stand. Thank you for listening to me request. :)