Converted mana potions early for piety to use cleansing to take down a higher-level wraith. Big mistake, didn't have enough resources to beat that level 10 boss on the bridge. Did get enough absolutions to survive a hit at level 5, but I wasn't able to swing a catapult level 6 so winning that fight wasn't in the cards with all the resources I'd blown.
Really wishing I'd checked the spoilers here before playing
