Stormtide Leviathan

Public decks that run Stormtide Leviathan

• Reap the Tides - Commander Legends, led by Aesi, Tyrant of Gyre Strait

Commanders that run Stormtide Leviathan most

Deck counts from EDHREC.

• Kiora, Sovereign of the Deep: 4,588 decks
• Runo Stromkirk // Krothuss, Lord of the Deep: 4,442 decks
• Kenessos, Priest of Thassa: 4,134 decks
• Aesi, Tyrant of Gyre Strait: 2,877 decks
• Braids, Conjurer Adept: 2,840 decks
• Arixmethes, Slumbering Isle: 2,549 decks
• Eluge, the Shoreless Sea: 2,462 decks
• Marvo, Deep Operative: 1,841 decks

Often played with Stormtide Leviathan

Cards that show up in the same decks on EDHREC.

• Lochmere Serpent
• Quest for Ula's Temple
• Shipbreaker Kraken
• Rot-Tide Gargantua
• Kraken of the Straits
• Benthic Behemoth
• Harbor Serpent
• Segovian Leviathan
• Simic Sky Swallower
• Lorthos, the Tidemaker

Rulings

• 2014-07-18: Stormtide Leviathan's second ability causes each land on the battlefield to have the land type Island. Each land thus has the ability "{T}: Add {U}." Nothing else changes about those lands, including their names, other subtypes, other abilities, and whether they're legendary or basic.
• 2014-07-18: Stormtide Leviathan's third ability affects all creatures with neither flying nor islandwalk, regardless of who controls them. They can't attack any player or planeswalker.
• 2014-07-18: Islandwalk cares about lands with the land type Island, not necessarily lands named Island.
• 2014-07-18: If Stormtide Leviathan loses its abilities, all lands on the battlefield (including those that enter the battlefield later on) will still be Islands in addition to their other types and will still be able to tap to produce {U}. The way continuous effects work, Stormtide Leviathan's type-changing ability is applied before the effect that removes that ability is applied.