Minecraft wiki entry for Conduit_Power, associated text: Players under the effect of Conduit Power receive all of the status effects of Water Breathing, Night Vision, and Haste. This means that their breath meter does not decrease, it gets filled up even underwater‌[Bedrock Edition only][1], they can sleep in a waterlogged bed‌[Bedrock Edition only], they are able to see underwater, and their underwater mining speed increases. Despite Conduit Power being able to prevent drowning, it does not stack with Water Breathing, which means if the player has both effects, the Water Breathing still ticks down.