mcreator idea for new potion creator

I love the new potion feature in 1.9.0 but as a idea to make it better and cooler maybe for your custom potions can have a new brewing stand recipie for your custom potions and about the new option is it good or bad for the player how about a option do witches use your custom potion like if its a bad potion for the player they throw splash potion at player but if the potion is beneficial for the player the witch drinks the custom potion and you don't have to make witches use your custom potions its a option so what do you guys think of my idea

comment what you think