Legendary Creature — Merfolk Noble

Kiora, Sovereign of the Deep

Mana value5EDHREC#8,478

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The Commander

Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value less than X from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Guide

Gameplan

Ramp hard into giant Krakens, Leviathans, Octopuses, and Serpents, then snowball: each big sea monster you cast digs through your library and casts a smaller one for free. Vigilance lets Kiora attack and block, while ward 3 protects your investment. You win by flooding the board with enormous bodies and beating face.

Strengths

Free value chains—every big sea monster cast can cascade into another spell for free
Ward 3 and vigilance make Kiora hard to remove and great on both offense and defense
Simu colors give the best ramp and card draw to fuel huge mana values
Top-end creatures are individually massive threats that close games fast

Weaknesses

Top-heavy curve can be clunky and slow if ramp doesn't show up
Relatively narrow tribal pool—sea monsters lack evasion and are often vulnerable to spot removal
Board wipes are brutal given your reliance on a few expensive bombs
The free-cast trigger only works from hand, so reanimation and flicker don't synergize

Key Cards

Quest for Ula's Temple — Cheats your giant sea monsters into play, sidestepping their massive mana costs.
Stormtide Leviathan — Locks down the ground for the whole table while you swing with bigger fliers and unblockables.
Whelming Wave — A one-sided board wipe that bounces everything except your Krakens, Leviathans, Octopuses, and Serpents.
Kiora's Follower — Untaps lands or your monsters for extra mana and combat tricks, accelerating into your bombs.
Cyclonic Rift — The premier blue reset that clears blockers before an overwhelming alpha strike.

Upgrade Path

Add more cheat-into-play enablers (Quest for Ula's Temple, Pati'er, Selvala's Stampede, See the Unwritten) and aggressive ramp like Cultivate, Kodama's Reach, and big mana rocks to deploy bombs ahead of curve. Tune the curve so you reliably hit high-mana-value triggers while keeping cheaper sea monsters to fill the free-cast slots, and add protection/evasion like Whispersilk Cloak or Rogue's Passage. To push higher, lean on Cyclonic Rift, mass untap effects, and a tighter top-end of efficient finishers.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Beating down with oversized Kraken/Leviathan bodies, often with trample or evasion
▸Stormtide Leviathan or similar locking the board while your unblockables connect
▸Chaining free sea monsters off Kiora into an overwhelming board, then alpha striking

Archetypes

Sea Monster Tribal — Kiora directly rewards casting Krakens, Leviathans, Octopuses, and Serpents with free spell chains.
Big Mana Ramp — GU ramp lets you deploy huge creatures early and trigger Kiora's dig repeatedly.
Midrange Beatdown — The deck wins through sheer size, attacking with vigilant, hard-to-remove giants.