Kenrith is a compact combo deck that wins by assembling one of six verified two- or three-card kills, all executable by turn 5–7 with proper tutoring and mana acceleration. The core plan chains cheap spells (Demonic Consultation and Brain Freeze, plus 2 more similar cards) into instant-speed combo finishes: Demonic Consultation exiles your library and wins immediately when Thassa's Oracle enters; Underworld Breach plus Lotus Petal plus Brain Freeze mills your library and generates infinite storm copies to mill opponents; Dramatic Reversal plus Isochron Scepter untaps your board infinitely for mana and magecraft triggers; Dualcaster Mage plus Molten Duplication creates infinite token copies and death triggers. Doomsday stacks your library and wins with Thassa's Oracle. 5 tutors (Demonic Tutor and Diabolic Intent, plus 3 more tutors) find any card the plan needs; Demonic Consultation is not a tutor. Across 120 simulated games, the deck wins 94% of the time through combo, with a median kill turn of 10 in casual tables and as early as turn 5 in uncontested games.
Mana acceleration into tutors: Sol Ring, Ancient Tomb, and the ritual spells (Dark Ritual and Cabal Ritual, plus 2 more ramp pieces) generate 3–5 mana by turn 2, letting you cast Demonic Tutor, Diabolic Intent, or Grim Tutor to search for a combo piece. Spell-chain engine: Once you have a tutor and mana, you fetch Demonic Consultation or Doomsday (the two primary kill pieces). Demonic Consultation names Thassa's Oracle, exiles your entire library, then you cast Thassa's Oracle for {U}{U} and win on the spot—the Oracle's trigger checks your devotion to blue (the total blue mana in your permanents' costs) and wins if that number is at least as large as your library's remaining cards, which is zero. Underworld Breach loop: If you have Underworld Breach in hand or graveyard, you can cast Lotus Petal, sacrifice it for mana, then escape it from your graveyard by exiling three cards and paying its escape cost. Repeat this loop, building storm count (the number of spells cast before the current spell this turn). Once you have enough storm, cast Brain Freeze from your hand or escape it, and its storm ability copies it once for each prior spell, milling you and your opponents. Dramatic Reversal combo: Isochron Scepter imprints a cheap instant (usually Dramatic Reversal itself, if you have a way to get it into your hand). Tap Scepter and pay {2} to cast a copy of Dramatic Reversal without paying its mana cost. Dramatic Reversal untaps all your nonland permanents, so you untap Scepter and any mana producers. Repeat infinitely, generating infinite magecraft triggers (Storm-Kiln Artist, Orcish Bowmasters, and other payoffs create Treasure tokens or drain the table). Dualcaster loop: Cast Molten Duplication targeting a creature you control. Before it resolves, cast Dualcaster Mage. When Dualcaster enters, it copies Molten Duplication, targeting itself. The copy resolves, making a token copy of Dualcaster. Repeat, creating infinite tokens and death triggers. Tutors find all pieces: Demonic Tutor and Diabolic Intent, plus 3 more tutors all search your library for the combo pieces. Bloodstained Mire and Polluted Delta fetch dual lands that fix your mana. The redundancy means you almost always find what you need within the first two tutors.