New Feature - Spell Power Potion
I think most players will agree that spell power management is a crucial feature in the game. You need lots of it to take on higher level fortresses, and sometimes when I really want to focus on Fortresses or when I'm preparing to go battle with friends, I find myself stocking up by following an optimized route around a cluster of inns. This can get tedious pretty quickly so I'd like there to be a way to get spell energy fast, at least occasionally.
For this I'd like to suggest a potion that improves the yields of inns while active, making it easier to stock up to maximum within a shorter time. However, I wouldn't like spellpower to suffer an inflation, so I think the potion should be semi-difficult to obtain with portkey-only ingredients, and it could optionally have the added effect of decreasing the spawn rate of traces in the vicinity in order to discourage excess use. That way it could be used to quickly stock up your spell power every now and then, but fueling a rampage of dozens of fortress matches per day with it would be too expensive.