Struggling with the water-breathing mechanic in underwater delves? Learn how a simple trick with elixirs can save you from drowning and speed up your progress.
Use Water-Breathing Elixirs for Easy Breathing
Before diving into any underwater delves, make sure to stock up on 
Noggenfogger Elixirs. These potions, available from Sprinkle Noggenfogger in Gadgetzan, give you unlimited water breathing. Getting to Gadgetzan is easy. Use the Caverns of Time portal from your faction’s portal room, then fly over to the area.
If you’re an Undead, you can take advantage of breathing under water.
Skip Combat with Invisibility Options
Another great way to save time during underwater delves is by avoiding unnecesary combat altogether. Combine a water-breathing elixir with an invisibility potion to sneak past annoying mob packs without engaging in combat.
There are several types of invisibility options available in the AH, so pick the one that suits your needs and stock up before heading into a delve.