Overview:

This is a highly optimized Thassa's Oracle combo deck using Hashaton, Scarab's Fist as a backup win condition. The deck aims to win through either emptying its library with Demonic Consultation/Tainted Pact + Thassa's Oracle, or through various discard/reanimation loops.

Primer:

The deck operates primarily as a turbo combo deck, seeking to assemble its primary win condition (Thassa's Oracle + Demonic Consultation/Tainted Pact) as quickly as possible. The optimal opening hand should contain fast mana (Mox Diamond, Chrome Mox, Lion's Eye Diamond, etc.), tutors, and protection pieces. The deck runs a high density of counterspells to protect its combo and disrupt opponents.

Early game focuses on establishing mana sources and setting up card advantage through Mystic Remora or Rhystic Study. Mid-game involves tutoring for combo pieces while maintaining protection. The deck can pivot between its primary Oracle win and secondary reanimation strategies based on the game state. The commander serves as a value engine that can create threatening board states through discarding and copying creatures, providing a backup win condition if the primary plan is disrupted.

Weaknesses:

• Vulnerable to graveyard hate and Rest in Peace effects
• Can struggle against heavy stax pieces that prevent tutoring or increase spell costs
• Relatively fragile to targeted removal of key combo pieces
• Limited creature-based interaction outside of counterspells

Most Important Cards:

1. Thassa's Oracle
2. Demonic Consultation
3. Tainted Pact
4. Force of Will
5. Mana Drain
6. Lion's Eye Diamond
7. Mox Diamond
8. Chrome Mox
9. Vampiric Tutor
10. Demonic Tutor

Attribute Ratings:

• Speed: 9/10
• Resilience: 8/10
• Consistency: 9/10
• Interaction: 9/10

Rating Justification:

This deck consistently threatens wins by turn 2-3 with heavy protection through counterspells and fast mana. The mana base is highly optimized with all relevant fetch lands and dual lands, allowing for consistent color fixing. The density of tutors and redundant combo pieces puts this firmly in cEDH territory. The inclusion of multiple win conditions and strong protection suite makes it resilient against interaction.

Final power level rating: 9.0 - 9.5

The deck exhibits all hallmarks of a competitive EDH deck:

• Multiple efficient win conditions
• Extensive suite of free/cheap interaction
• Optimal mana base
• High density of tutors and card selection
• Fast mana package
• Ability to win consistently by turn 2-3

This places it solidly in the cEDH Tier 1-2 range, capable of competing at the highest levels of play while maintaining resilience through redundancy and protection.