Overview:

This Sultai deck helmed by Felix Five-Boots focuses on amplifying triggered abilities from evasive creatures dealing combat damage. The strategy combines deathtouch synergies, poison proliferation via Fynn, the Fangbearer, and life-halving effects like Quietus Spike/Virtus the Veiled, all doubled by Felix’s ability. The deck leverages unblockable enablers (Aether Tunnel, Invisible Stalker), equipment-based value (Sword of Feast and Famine, Blade of Selves), and midrange control tools (Toxrill, the Corrosive, Grave Pact) to grind opponents down. Felix acts as a critical engine, doubling triggers from cards like Ohran Frostfang, Sheoldred, the Apocalypse, and Poison-Tip Archer, but the deck can function with alternative value engines if he’s removed.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-4):
   • Deploy mana rocks (Sol Ring, Arcane Signet) or land-based ramp (Exploration, Sword of the Animist).
   • Cast evasive enablers like Invisible Stalker, Blighted Agent, or Cephalid Facetaker.
   • Equip key creatures with Quietus Spike, Scytheclaw, or Sword of Feast and Famine to amplify damage triggers.

2. Midgame Triggers (Turns 4-7):

   • Cast Felix to double combat-damage triggers. Pair with Ohran Frostfang (draw 2 per hit), Sheoldred, the Apocalypse (life swing 4 per draw), or Drana, Liberator of Malakir (double +1/+1 counters).
   • Use Blade of Selves on Massacre Wurm or Toxrill, the Corrosive for exponential value.
   • Deploy stax/control pieces like Propaganda or Grave Pact to slow opponents.

3. Win Conditions (Turns 6+):

   • Combat/Triggers: Overwhelm with amplified poison (Fynn + deathtouch), life halving (Virtus/Quietus Spike), or Beastmaster Ascension-boosted boards.
   • Alternate KOs: Activate Vorpal Sword’s instant-win ability after establishing unblockable threats.
   • Grind Value: Use The Great Henge and Tribute to the World Tree to outvalue opponents.

Mulligan Priorities:

• Keep hands with 2-3 lands (including color-fixing like Command Tower).
• Prioritize early evasive creatures (Blighted Agent, Suspicious Stowaway) or equipment tutors (implicit via card draw).
• Ensure at least one piece of interaction (Force of Will, Counterspell) or protection (Undying Malice).

Key Tips:

• Use Cephalid Facetaker to copy high-impact creatures like Toxrill while retaining unblockability.
• Mimic Vat can permanently imprint creatures like Massacre Wurm if their token dies post-combat.
• Peer into the Abyss + Sheoldred, the Apocalypse can one-shot opponents via life loss.

Weaknesses:

Critical

• Commander Dependency: Felix’s removal cripples trigger amplification, and ward {2} offers minimal protection in high-power metas.
• Lack of Fast Combos: Relies on incremental damage; struggles to close games before T8 against tuned decks.

Moderate

• Artifact/Enchantment Reliance: Key equipment (Quietus Spike, Vorpal Sword) and engines (The Great Henge) are vulnerable to removal.
• Board Wipe Vulnerability: Limited recursion outside Volrath's Stronghold/Academy Ruins makes recovery slow.

Minor

• Mana Constraints: Despite duals/fetches, color-intensive cards (e.g., Tribute to the World Tree) can strain early sequencing.

Most Important Cards:

• Felix Five-Boots (Trigger doubler, strategy linchpin)
• Quietus Spike (Life-halving win condition)
• Fynn, the Fangbearer (Poison alt-win enabler)
• Ohran Frostfang (Card draw engine)
• Sheoldred, the Apocalypse (Life swing amplifier)
• Toxrill, the Corrosive (Board control + token generation)
• Cyclonic Rift (Game-resetting interaction)
• The Great Henge (Value engine)
• Force of Will (Critical protection)
• Vorpal Sword (Alternate win condition)

Attribute Ratings:

Speed: 6/10

• Can threaten lethal via poison or life halving by T6-8 but lacks fast infinite combos.

Resilience: 5/10

• Limited protection for key pieces beyond counterspells; relies on redundancy of evasive threats.

Consistency: 7/10

• Strong card draw (Ohran Frostfang, The One Ring) and mana fixing offset the lack of tutors.

Interaction: 6/10

• Efficient removal (Toxic Deluge, Sudden Spoiling) and counterspells, but light on artifact/enchantment hate.

Rating Justification:

This deck operates as a focused midrange strategy with multiple synergistic win paths but lacks the speed (T6-8) and resilience of higher-tier lists. Its reliance on combat damage and incremental value aligns with the "Focused" tier (6.0), though its mana base and card quality push it toward the upper end.

Power level: 6.0 - 6.5