The flame of the candle cannot be extinguished underwater. Still gives off light and heat.

You regain 2d4 + 2 hit points when you drink this potion. The potion's red liquid glimmers when agitated.

Revivify

3rd-level necromancy
Casting Time: 1 action
Range: Touch
Components: V, S, M (diamonds worth 300 gp, which the spell consumes)
Duration: Instantaneous
You touch a creature that has died within the last minute. That creature returns to life with 1 hit point. This spell can't return to life a creature that has died of old age, nor can it restore any missing body parts.

While wearing this armor, you have a swimming speed equal to your walking speed. In addition, whenever you start your turn underwater with 0 hit points, the armor causes you to rise 60 feet toward the surface. The armor is decorated with fish and shell motifs.

This armor consists of a coat and leggings (and perhaps a separate skirt) of leather covered with overlapping pieces of metal, much like the scales of a fish. The suit includes gauntlets.

The wearer has disadvantage on Dexterity (Stealth) checks.

Your Strength score is 19 while you wear these gauntlets. They have no effect on you if your Strength is already 19 or higher.