This should be a fairly simple add for The Washed-Up Hermit: right now, there is no way to tell how much he's boosted by the Lonersim ability from his Legendary. Similar abilities on other Crusaders will display something like "Current Bonus: 200%" when you mouse over the Crusader in the formation, but for some reason, The Hermit doesn't seem to have that. This would be useful, since it's not always clear what counts as an empty slot.