A slightly bigger than normal sapphire blue shield with a depiction of a coral reef with a jellyfish in it made of a variety of crystals that are as strong as metal

Upon attunement, the attuned gains water breathing, a swim speed equal to their move speed, 1 extra ac compared to a normal shield, and functional immortality

more details about the immortality: prevents aging entirely as long as attuned, and after damage is taken, if 2 rounds/12 seconds go by without more damage being taken, half of the damage taken is restored, if 2 more rounds/12 more seconds go by without damage being taken, the rest of the damage taken is restored, any attack that would leave a permanent scar and is healed has jellyfish flesh instead of a scar, the flesh functions exactly the same as the flesh of the current attuned race, only difference being it is transparent

Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.

Notes: Bonus: Speed (Swimming), Bonus: Armor Class, being made of flesh