Since the potions are kind of a failure (the ingredients are way more expensive than the product, no one wants to dedicate 15 bag slots for each type, and no area has the same type of creature for 30 minutes except endgame undead areas)….
How about a Potion of Creature slaying to help with animals/skelk/drake/graveling etc. It would be more universal and sensible to carry around and would fill a gap that the other potions don’t do.