Sea Guardian

"You've stumbled upon a Sea Guardian. "

The Sea Guardian is a Sea Creature that spawns while fishing after unlocking  level V. You can fish these up anywhere where water is found, except your private island.

Behavior
Sea Guardians spawn commonly whenever you fish after reaching Level V. They chase after the players and jump on them to hit them, dealing big damage.

Drops

 * 1-2 Lily Pad
 * 1-3 Prismarine Shard
 * 1-3 Prismarine Crystal
 * 0 or 1 Sea Lantern