Potions for self defense? It wasn't something Evan had looked extensively into, as for the reason Val listed, and for the fact a potion would have to be consumed in most cases, sometimes by the target. Which could prove entirely difficult given the circumstances. Still, he wasn't one to remain silent during discussion so there was one that came to mind that could be helpful - if one could figure out how to administer it.

He raised his hand and waited to be called on before offering, "The Draught of Living Death. You could put someone to sleep with that rendering them unable to come at you." Although... "You could also take it yourself, and try the opossum approach if playing dead." Though that could be dangerous too since you much of the potion could make it lethal.