Overview:

This 5-color Kenrith deck is a high-octane combo build leveraging the commander's versatile activated abilities alongside fast mana, efficient tutors, and compact win conditions. The primary strategy revolves around assembling the Thassa's Oracle + Demonic Consultation/Tainted Pact combo (though Tainted Pact isn't listed), supported by Underworld Breach + Lion's Eye Diamond lines for infinite mana/draws. Kenrith serves as both a value engine (with cost reducers like Biomancer's Familiar) and an infinite mana sink, while the deck's dense interaction suite protects its game plan. Backup strategies include Ad Nauseam draws into combo pieces and Kinnan, Bonder Prodigy value.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-2): Deploy fast mana (Sol Ring, Lotus Petal, Mana Crypt proxies via Ancient Tomb), dorks (Birds of Paradise, Ignoble Hierarch), and stax-resistant value (Esper Sentinel, Mystic Remora).
2. Tutor/Assemble Combo (Turns 2-4): Use Demonic Tutor, Enlightened Tutor, Intuition, or Wishclaw Talisman to find Thassa's Oracle + exile effects or Underworld Breach. Silence/Grand Abolisher protects critical turns.
3. Win Condition Execution:
   • Primary: Cast Demonic Consultation/Tainted Pact naming a nonexistent card, exiling the library, then Thassa's Oracle.
   • Secondary: Generate infinite mana via Underworld Breach + Lion's Eye Diamond loops (with Brain Freeze absent, use Kenrith's draw ability to deck yourself for Thoracle).
   • Tertiary: Ad Nauseam at end step to draw most of the deck, then combo off.

Mulligan Priorities:

• Keep hands with 1-2 lands, fast mana, and a tutor or combo piece.
• Prioritize Thassa's Oracle + Demonic Consultation if both are present.
• Ensure access to blue/black mana for critical spells. Avoid hands lacking early acceleration.

Key Tips:

• Use Force of Will, Force of Negation, and Fierce Guardianship to protect combo turns.
• Underworld Breach can recur key tutors or interaction from the graveyard.
• Kinnan, Bonder Prodigy can cheat Dualcaster Mage for combo potential or Eternal Witness for recursion.

Weaknesses:

Critical

• Dies to Drannith Magistrate/Opposition Agent, which block key tutors and Kenrith's abilities.
• Leyline of the Void/Rest in Peace neuter Underworld Breach and reanimation lines.

Moderate

• Struggles against Rule of Law effects limiting spell sequencing.
• Cursed Totem/Collector Ouphe disable mana dorks and Kinnan.

Minor

• Light on board wipes beyond Cyclonic Rift, vulnerable to wide token strategies.
• Mindbreak Trap/Tale's End can exile critical noncreature spells.

Most Important Cards:

• Thassa's Oracle (Primary win condition)
• Demonic Consultation (Library exile for Thoracle)
• Underworld Breach (Recursion engine/combo piece)
• Lion's Eye Diamond (Mana source for Breach loops)
• Ad Nauseam (Draw engine to assemble combo)
• Force of Will (Free interaction)
• Demonic Tutor (Tutor any piece)
• Esper Sentinel (Early stax and draw)
• Mystic Remora (Disruption-resistant card advantage)
• Grand Abolisher (Combo turn protection)

Attribute Ratings:

Speed: 9/10

• Capable of T1-T3 wins with perfect hands (e.g., T1 LED + Breach + Consultation). Average goldfish: T3-T5.

Resilience: 8/10

• 12 free/low-cost interaction spells, recursion via Breach/E-Witness, and redundancy in tutors.

Consistency: 9/10

• 14 tutors, 8 card-advantage engines, and overlapping combo lines ensure reliable access to win conditions.

Interaction: 8/10

• 15 targeted removal/counterspells, including free options and Abrupt Decay for problematic permanents.

Rating Justification:

This deck operates at cEDH Tier 1 levels with its density of fast mana, free interaction, and compact win conditions, capable of winning T1-T3 through disruption. However, minor gaps in stax pieces and reliance on graveyard for Breach lower its resilience slightly compared to absolute Tier 0 lists.

Power level: 9.0 - 9.5