Overview:

This Jeskai combo deck leverages Shiko's recursion to enable explosive turns with Underworld Breach and Dualcaster Mage combos, supported by cEDH-grade fast mana and protection. The deck operates as a hybrid storm/consultation shell with multiple redundant win lines and free interaction.

Primer:

Core Strategy: The deck aims to win via:

1. Underworld Breach Lines: Lion's Eye Diamond + Brain Freeze generates infinite storm/mill with escape recursion
2. Dualcaster Combos: Twinflame/Ghostly Flicker creates infinite hasty tokens
3. Oracle Backup: Thassa's Oracle with milled libraries via Breach or Windfall effects

Key Phases:

• Turbo Setup: Use Mana Vault, Mox Diamond, and Jeska's Will to power out T2-T3 Breach/combos
• Tutor Chains: Recruiter of the Guard → Dualcaster Mage or Solve the Equation → Underworld Breach
• Protected Wins: Cast Silence or sac Ranger-Captain of Eos before going off, backed by free counterspells

Mulligan Priorities:

• Keep hands with fast mana + tutor/protection
• Reject hands without blue sources or combo enablers
• Prioritize T1 Mystic Remora/Esper Sentinel in interactive metas

Key Tips:

• Use Shiko to rebuy Brain Freeze or interaction spells
• Displacer Kitten blinks Breach for additional escape activations
• The One Ring provides draw gas and temporary immunity
• Intuition piles should always include Breach + LED + Oracle

Weaknesses:

Critical:

• Graveyard hate (Rest in Peace) cripples Breach lines
• Drannith Magistrate blocks Shiko/commander casts

Moderate:

• Requires precise sequencing under pressure
• Limited creature-based wincons if tokens get exiled

Minor:

• Life loss from Ancient Tomb/The One Ring

Most Important Cards:

• Underworld Breach
• Lion's Eye Diamond
• Thassa's Oracle
• Dualcaster Mage
• Force of Will
• Mystical Tutor
• Intuition
• Rhystic Study
• Mana Vault
• Imperial Recruiter

Attribute Ratings:

Speed: 9/10

• Goldfish wins T2 (Breach+LED+Freeze) to T3 (Twinflame combos)
• 14 fast mana sources enable explosive starts

Resilience: 8/10

• 12 free/cheap counterspells protect combos
• Pull from Eternity recovers exiled pieces
• Multiple redundant wincons

Consistency: 9/10

• 16 tutors including 7 creature tutors
• Wheel effects refuel hands
• 10+ card draw engines

Interaction: 9/10

• 18 instant-speed answers (7 free)
• Stax elements via Narset, Parter of Veils/Teferi, Time Raveler
• Cyclonic Rift as reset button

Rating Justification:

The deck meets cEDH Tier 1 benchmarks with:

• T2-T3 deterministic wins (matches 9.5 speed)
• Redundant protection exceeding 8.5 resilience standards
• Tutor density rivaling T1 consultation decks
  Lacks only the absolute fastest T1 lines (e.g., Demonic Consultation+Oracle) but compensates with greater flexibility.

Power level: 9.0 - 9.5