Overview:

This Simic (GU) deck helmed by Tamiyo, Inquisitive Student focuses on card draw synergies, counter manipulation, and planeswalker value to enable multiple win conditions. The strategy revolves around triggering Tamiyo’s flip condition (drawing three cards in a turn) using engines like Rhystic Study, Teferi’s Ageless Insight, and Windfall, then leveraging her transformed planeswalker side’s recursion and ultimate. Secondary themes include +1/+1 counter proliferation, token generation, and alternate wincons like Laboratory Maniac/Jace, Wielder of Mysteries.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-4): Prioritize ramp (Sol Ring, Explore, Loot, Exuberant Explorer) and card draw engines (Rhystic Study, Aether Syphon, Tireless Tracker). Use Kira, Great Glass-Spinner or Essence Capture to protect key pieces.
2. Flip Tamiyo: Trigger her transformation via burst draw (Windfall, Finale of Revelation, Teferi, Temporal Pilgrim) or incremental sources (Psychic Corrosion, Tamiyo's Journal).
3. Midgame Value (Turns 5-8): Activate planeswalker abilities (Kasmina, Enigma Sage, Tamiyo, Compleated Sage) and proliferate counters via Karn's Bastion or Dreamtide Whale. Deploy threats like Koma, World-Eater or Psychosis Crawler.
4. Win Conditions:
   • Combat: Overwhelm with Overrun, Koma’s Serpent tokens, or Tishana, Voice of Thunder scaled by hand size.
   • Combo: Ichormoon Gauntlet’s extra turn ability with loyalty counter synergies or Laboratory Maniac/Jace, Wielder of Mysteries paired with mass draw.
   • Control: Lock opponents with repeated counterspells (Three Steps Ahead, Saw It Coming) and recursion of Finale of Revelation.

Mulligan Priorities:

• Keep hands with 2-3 lands (GU sources preferred), at least one ramp spell, and a card draw engine.
• Prioritize Rhystic Study, Teferi’s Ageless Insight, or Aether Syphon for early momentum.
• Avoid hands lacking ramp or card advantage.

Key Tips:

• Use Deepglow Skate to double loyalty counters on Tamiyo or Kasmina for faster ultimates.
• Wilderness Reclamation enables instant-speed proliferate or counterspells during opponents’ turns.
• Proft's Eidetic Memory turns excess draws into +1/+1 counters for creature-based wins.

Weaknesses:

Critical

• Graveyard Reliance: Lab Man/Jace wins and recursion (Regrowth, Unnatural Restoration) fold to Rest in Peace or Leyline of the Void.
• Stax Vulnerabilities: Hushbringer/Torpor Orb neuter ETB triggers (Tireless Tracker, Evolution Witness), while Narset, Parter of Veils blocks draw engines.

Moderate

• Slow Combos: Lab Man lines require setup and lack redundancy; Ichormoon Gauntlet’s extra turn costs 12 loyalty.
• Board Wipes: Limited protection against Cyclonic Rift or Damnation; relies on Fog or rebuilding via recursion.

Minor

• Artifact/Enchantment Reliance: Key engines (Psychic Corrosion, Wilderness Reclamation) are vulnerable to removal.
• Mana Constraints: Multiple taplands (Temple of Mystery, Simic Growth Chamber) slow early plays.

Most Important Cards:

• Rhystic Study (Card draw engine)
• Koma, World-Eater (Board-stalling threat)
• Teferi’s Ageless Insight (Draw multiplier)
• Ichormoon Gauntlet (Loyalty counter synergy/extra turns)
• Jace, Wielder of Mysteries (Alternate wincon)
• Finale of Revelation (Mass draw/graveyard shuffle)
• Kira, Great Glass-Spinner (Protection)
• Tamiyo's Journal (Tutoring)
• Deepglow Skate (Counter doubling)
• Wilderness Reclamation (Mana untapping)

Attribute Ratings:

Speed: 5/10
Can threaten Lab Man wins or Koma dominance by T8-10, but lacks fast mana or T4-5 combos.

Resilience: 6/10
Recursion (Regrowth, Tamiyo’s -3) and protection (Kira) mitigate disruption, but core engines are fragile.

Consistency: 7/10
Abundant draw and proliferate effects ensure steady access to key pieces, though tutors are limited.

Interaction: 5/10
Counterspells (Saw It Coming, Refute) and targeted removal (Master’s Rebuke) are present but not oppressive.

Rating Justification:

This deck has a focused gameplan with multiple synergistic wincons but operates at a casual-optimized speed (T8-10) and lacks the redundancy/protection of high-power lists. Its reliance on incremental value over explosive combos aligns with the Optimized Casual tier.

Power level: 5.0 - 6.0