[Scripting Question] How can I add potions with secondary effects?

[AHJ]

What I'm trying to do is create potion items - separate from the already existing ones - that will heal a pokémon and apply a status condition or affect its stats (ie. 200 HP but Burned, 100 HP but Attack lowered, 100 HP but Confused etc.)

I wanted to try and basically frankenstein my way through the potion scripts in Item_Effects but with my pitifully small coding experience I didn't want to mess with it too much