Atlantean Brew

The Atlantean Brew is a Hardmode, post-Moon Lord potion that is made from a Water Bottle, Neptunite, etc. Expensive but totally worth it for The Depths exploration. The potion grants water breathing, very high pressure resistance, increased resistance to hot and cold areas in the Depths, as well as underwater night vision, defense, life regeneration and damage. Basically most of the close-to superhuman abilities an Atlantean possesses.