Overview:

A mono-blue polymorph strategy that aims to cheat out Kozilek, Butcher of Truth while controlling the game through countermagic and extra turns, supplemented by artifact-based value engines and card draw.

Primer:

The deck's primary gameplan revolves around using Jalira, Master Polymorphist to transform small creatures or tokens into Kozilek, Butcher of Truth, the deck's primary finisher. To enable this, the deck runs numerous token generators like Talrand, Sky Summoner and Sai, Master Thopterist, along with artifact creatures that can be sacrificed. The deck protects its strategy through a robust suite of counterspells and interaction.

The secondary strategy involves controlling the game through card advantage engines like Rhystic Study and Mystic Remora, while setting up extra turn spells to create overwhelming advantage. The deck can also win through gradual value accumulation with its various artifact synergies and token producers, making it flexible in its approach to victory.

Weaknesses:

The deck is heavily reliant on its commander to execute its primary strategy and can struggle if Jalira, Master Polymorphist is repeatedly removed. It's vulnerable to graveyard hate that can exile Kozilek, Butcher of Truth and artifact removal that can disrupt its mana acceleration. The deck can also struggle against aggressive strategies that deploy multiple threats before it can establish control.

Most Important Cards:

• Kozilek, Butcher of Truth
• Rhystic Study
• Mind Over Matter
• Sol Ring
• Expropriate
• Time Stretch
• Fierce Guardianship
• Force of Negation
• Thran Dynamo
• Mystic Remora

Attribute Ratings:

• Speed: 6/10
• Resilience: 7/10
• Consistency: 7/10
• Interaction: 8/10

Rating Justification:

This deck sits comfortably in the 7.0-7.5 range due to its ability to establish control and threaten wins around turns 5-6 through either its polymorph strategy or extra turns. While it lacks the explosive fast mana of higher-powered decks, it makes up for it with consistent interaction and multiple paths to victory. The presence of high-impact cards like Expropriate and strong protection suite elevates it above typical focused decks but keeps it below truly competitive builds.

Final power level rating: 7.0 - 7.5