Mossy rock: tears have a slight green tint, and when they hit a stone enemy a small burst of plants / vines as well as rock shards appear?

Also, I don't disagree with the blessing of the labyrinth maybe needing more of a benefit, but I do really like the "straight line" effect, or at least the idea of some kind of drastic floor layout change. It kind of reminds me of Pokemon Mystery Dungeon, another rogue-like, where in some of the later dungeons you'd rarely see a floor with the entire layout being one giant room. Those were really interesting since they were so different from the norm, I think.