Serpent of Yawning Depths
Enchantment Creature — Serpent, {4}{U}{U}
Oracle Text
Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.
Enchantment Creature — Serpent, {4}{U}{U}