Dragon Turtle

Monster Manual 119
Fizban's 110, 191

d30	Encounter
1	aquatic goblin hitchhikers, tolerated for parasite control
2	back flipper impaled by an impossibly-large narwhal horn
3	biting off the bow of a pirate ship
4	blinded in one eye from barnacle growth
5	camouflaged by a vast school of fish, feeding on shell algae
6	capsizing a fleet by swimming a whirlpool
7	caught on a titanic fishing hook, baited with a sea serpent, line dangling from the clouds
8	chomping a giant squid clean in half
9	circled by scavenging sharks, patient for scraps
10	devastating an underwater merfolk settlement
11	diving deep to drown an orca in its jaws
12	dragging a net full of at least a dozen melon-sized pearls
13	dredging the site of a legendary shipwreck to augment its hoard
14	encircled by a sea serpent, locked in combat
15	fitfully dreaming of flight
16	generating a great wake, where Blink Seals frolic
17	gulping down sailors who are desperately swimming toward land from a sinking ship
18	half-buried on a shallow seabed, dangling a golden tongue
19	hauling itself up on a sandy beach to destroy a lighthouse
20	patrolling these waters, demanding tribute from passing ships
21	painting the sky with vast plumes of steam
22	recent residency has disrupted shipping lanes / local inhabitants
23	reefs on the shell are habitat for desirable alchemical reagents
24	rune-scribed shell binds it to some unknown task
25	shell covered in intelligent, magic-using Giant Crabs
26	snacking on barn-sized Jellyfish
27	surrounded by a breathable bubble of air
28	tracking a pod of whales
29	utilized as a formidable war machine by merfolk
30	visiting ancient kelp forest Dryads for advice