16 cards where the card types include “whale” or the text includes “whale”

Aethertide Whale (Aether Revolt #27)
Colossal Whale (Magic 2014 #48)
Dreamtide Whale (Modern Horizons 3 #59)
Ethereal Forager (Commander 2020 #34)
Great Whale (Urza's Saga #77)
Horned Loch-Whale // Lagoon Breach (Wilds of Eldraine #53)
Killer Whale (Tempest Remastered #55)
Long-Finned Skywhale (Kaladesh #54)
Narwhal (Masters Edition II #57)
Phase Dolphin (Ikoria: Lair of Behemoths #62)
Pursued Whale (Commander Legends: Battle for Baldur's Gate #732)
Reef Worm (Modern Horizons 3 #271)
Star Whale (Doctor Who #55)
Steelfin Whale (Modern Horizons 2 #65)
Ukkima, Stalking Shadow (Outlaws of Thunder Junction Commander #247)
Waker of Waves (Core Set 2021 #84)

The message was clear to Sorin—time to search for something else.