
Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.
Serpent of Yawning Depths has 3 printings, first in Theros Beyond Death (2020). EDHREC ranks it #4,657 among Commander cards. It appears most in Kiora, Sovereign of the Deep decks (6,338 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.