Overview:

This is a highly optimized Sisay, Weatherlight Captain deck focused on leveraging powerful legendary permanents and fast mana to establish early control and win through various compact combos. The deck employs a toolbox strategy with multiple tutors and interaction pieces to adapt to different game situations.

Primer:

The deck's primary gameplan revolves around getting Sisay, Weatherlight Captain out as early as possible using its extensive suite of fast mana (Mana Crypt, Chrome Mox, Mox Diamond, etc.). Once Sisay is online, the deck can tutor for specific legendary permanents that either lock down opponents (Lavinia, Azorius Renegade, Opposition Agent) or advance its winning gameplan. The deck can pivot between control and combo depending on the game state.

The deck features several compact win conditions, including Najeela, the Blade-Blossom infinite combat steps, Derevi, Empyrial Tactician untap loops with Bloom Tender or Faeburrow Elder, and various planeswalker combinations. The high density of interaction pieces (Force of Will, Fierce Guardianship, Mental Misstep) ensures the deck can protect its key pieces while disrupting opponents' strategies.

Weaknesses:

The deck is somewhat vulnerable to targeted removal of Sisay, though it runs sufficient protection. Graveyard hate and null rod effects can slow down the deck's fast mana plan. Mass permanent removal can be problematic if the deck hasn't established a strong countermagic base.

Most Important Cards:

• Mana Crypt
• Chrome Mox
• Bloom Tender
• Faeburrow Elder
• Force of Will
• Derevi, Empyrial Tactician
• Opposition Agent
• Najeela, the Blade-Blossom
• Fierce Guardianship
• Dockside Extortionist

Attribute Ratings:

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

Rating Justification:

This deck consistently threatens wins or establishes strong control by turn 3-4, with the ability to win earlier with optimal hands. The extensive suite of interaction, tutors, and fast mana places it firmly in cEDH territory. While not quite at the absolute highest tier of cEDH decks, it's definitely a strong contender that can compete at high-powered tables.

Final power level rating: 8.5 - 9.0

The deck demonstrates all the hallmarks of a cEDH-viable list: efficient interaction, multiple compact win conditions, optimal mana base, and the ability to adapt to various game states. While it may not consistently threaten turn 1-2 wins like some tier 1 cEDH decks, it's definitely capable of competing at the highest levels of play.