Jaull-fish are giant aquatic creatures that live in the Guardian's Sea. Jaull-fish have multiple rows of teeth situated in its oral cavity. Near these teeth there are multiple sacs of precious sapphilite.
- was swallowed by a Jaull-fish while carving out its sapphilite sacs.
The sapphilite sacs harvested from Jaull-fish are in high demand in Bilgewater. They can be distiled into various magical elixirs and are for this reason sought after all over Runeterra. The sacs however need to be harvested fresh, while the fish is still alive.
- Mulitple Jaull-fish together is called a pod of Jaulls.