Overview:

This 5-color enchantress deck helmed by Marina Vendrell focuses on unlocking Room enchantments and generating value through enchantment/ETB synergies. The strategy revolves around accumulating value through repeated enchantment triggers (via cards like Entity Tracker and Gremlin Tamer), controlling the board with stun counters and removal, and eventually winning through either:
1) Combat with amplified Glimmer/Spirit tokens (Soaring Lightbringer, True Conviction)
2) Alternate wincon via Promising Stairs' 8-unique-Room condition
3) Incremental life drain (Balemurk Leech, Unholy Annex)
Marina serves as the critical engine, providing card advantage through her ETB and enabling Room activation via her tap ability. The deck heavily relies on enchantment synergy but lacks focused combo lines or explosive mana.

Primer:

Core Strategy Execution:

1. Early Setup (T1-4): Prioritize mana fixing (Chromatic Lantern, Verdant Haven) and early enchantments like Ethereal Armor/Shardmage's Rescue. Use Central Elevator to tutor key Rooms.
2. Midgame Value (T5-7): Deploy Marina to refill enchantments. Activate Rooms like Drowned Diner for card advantage and Steaming Sauna for hand size. Use Ghostly Dancers to recur key enchantments.
3. Win Conditions:
   • Combat: Amplify token armies with Lionheart Glimmer and True Conviction
   • Alternate Win: Chain Room activations to achieve 8 unique unlocked Rooms via Promising Stairs
   • Attrition: Lock down opponents with Sphere of Safety/stun counters while draining with Grievous Wound

Mulligan Priorities:

• Keep hands with 3+ lands including color fixing
• Prioritize early enchantments (Inquisitive Glimmer, Optimistic Scavenger)
• Ensure access to at least one Room card
• Avoid hands without green/white mana sources

Key Tips:

• Sequence Room activations carefully - prioritize unlocking Greenhouse for mana fixing before expensive Rooms
• Use Thassa, Deep-Dwelling to reset Marina's ETB or reuse Ghostly Dancers
• Secret Arcade turns all permanents into enchantments for massive All That Glitters boosts
• Save instant-speed enchantments like Nowhere to Run to trigger Eerie effects on opponents' turns

Weaknesses:

Critical

• Extreme vulnerability to enchantment wipes (Cleansing Nova, Farewell) with limited recursion beyond Redress Fate
• Mana base fragility: 14/38 lands enter tapped, heavy reliance on fragile fixing (Commander's Sphere, Vivid lands)

Moderate

• Slow setup speed makes early aggression problematic
• No instant-speed interaction for combos beyond Fear of Impostors
• Over-reliance on commander for card advantage

Minor

• Limited tutor density for key Rooms
• Weak to Stony Silence/Collector Ouphe shutting off artifact mana

Most Important Cards:

• Marina Vendrell (Card advantage engine & Room activator)
• Sphere of Safety (Primary defensive tool)
• Promising Stairs (Alternate win condition)
• Nyxbloom Ancient (Mana tripler for Room activations)
• Central Elevator (Room tutor)
• True Conviction (Combat finisher)
• Thassa, Deep-Dwelling (Value recycler)
• Redress Fate (Mass enchantment recursion)
• Inquisitive Glimmer (Cost reducer)
• Entity Tracker (Card draw engine)

Attribute Ratings:

Speed: 3/10

• No fast mana or early combos. Earliest realistic win via Rooms (T8+) requires significant setup.

Resilience: 4/10

• Some recursion/protection (Shardmage's Rescue, Sheltered by Ghosts), but collapses to resolved enchantment wipes.

Consistency: 5/10

• Marina provides enchantment digging, but Room synergies require specific sequences. Limited tutors for key pieces.

Interaction: 4/10

• Reactive tools like Seized from Slumber and Trapped in the Screen, but lacks counterspells/instant-speed answers to most threats.

Rating Justification:

This deck operates as Structured Jank (2.5) with elements of Refined Jank (3.0), relying on slow enchantment synergies without efficient wincons. While it has some cohesion, the glacial speed and fragility place it firmly in casual tiers.

Power level: 2.5 - 3.0