Overview:

This Golgari Phyrexian deck helmed by Glissa, Herald of Predation combines infect, proliferate, and token synergies to overwhelm opponents with poison counters and +1/+1-fueled threats. Glissa serves as an engine for generating and transforming Incubator tokens while enabling lethal combat steps with first strike/deathtouch. The deck leverages powerful counter-doublers like Vorinclex, Monstrous Raider and Doubling Season to accelerate poison or token strategies, supported by efficient tutors and recursion. While Glissa enables token generation, the deck’s core lies in its infect creatures, proliferate triggers, and explosive finishers like Triumph of the Hordes.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-4):
   • Deploy infect enablers (Glistener Elf, Blightbelly Rat) or ramp (Sol Ring, Elvish Medallion).
   • Cast Glissa to start generating Incubator tokens. Use proliferate engines (Evolution Sage, Throne of Geth) to amplify poison counters.
   • Tutor for key pieces like Vorinclex or Phyrexian Swarmlord with Demonic Tutor/Worldly Tutor.

2. Midgame Pressure (Turns 5-7):

   • Transform Incubators into 0/0s buffed by +1/+1 counters. Activate Glissa’s third ability to give Phyrexians first strike/deathtouch.
   • Cast Triumph of the Hordes or Phyresis Outbreak for lethal poison bursts. Use Yawgmoth, Thran Physician to proliferate and draw into finishers.
   • Deploy Sheoldred, Whispering One or Skithiryx as alternate threats.

3. Endgame (Turns 8+):

   • Close with Vorinclex-amplified proliferate triggers or Finale of Devastation for a trampling infect army.
   • Recur key creatures via Phyrexian Reclamation or Journey to Eternity.

Mulligan Priorities:

• Keep hands with 2-3 lands (including fixing like Overgrown Tomb).
• Prioritize early infect creatures, ramp, or a tutor.
• Avoid hands lacking early plays or reliant solely on high-CMC bombs.

Key Tips:

• Use Agatha's Soul Cauldron to grant infect or proliferate abilities to utility creatures.
• Phyrexian Altar turns Incubators into mana for explosive turns.
• Protect Vorinclex or Doubling Season with Heroic Intervention.

Weaknesses:

Critical

• Board wipes cripple the token/infect board presence; limited recovery outside Heroic Intervention.
• Anti-counter tech (Solemnity, The One Ring) nullifies proliferate and +1/+1 synergies.

Moderate

• Graveyard hate disrupts recursion (Sheoldred, Journey to Eternity).
• Artifact/enchantment removal targets key pieces like Doubling Season or Phyrexian Altar.

Minor

• Fliers can bypass ground defenses, but trample enablers (Garruk's Uprising) mitigate this.

Most Important Cards:

• Vorinclex, Monstrous Raider (Doubles poison/proliferate triggers)
• Triumph of the Hordes (Lethal infect alpha strike)
• Doubling Season (Amplifies tokens/counters)
• Yawgmoth, Thran Physician (Proliferate engine + removal)
• Phyrexian Swarmlord (Scaling token generation)
• Demonic Tutor (Finds critical pieces)
• Assassin's Trophy (Universal removal)
• Phyrexian Altar (Token-to-mana conversion)
• Toxic Deluge (Board wipe)
• Boseiju, Who Endures (Answer to hate pieces)

Attribute Ratings:

Speed: 6/10

• Can threaten T5-7 wins via infect bursts or Triumph of the Hordes, but slower in multiplayer due to poison’s 10-counter requirement.

Resilience: 5/10

• Limited protection beyond Heroic Intervention; relies on recursion and redundancy to rebuild after setbacks.

Consistency: 7/10

• Tutors (Beseech the Mirror, Worldly Tutor) and card draw (Sylvan Library, Tribute to the World Tree) ensure key pieces are accessible.

Interaction: 6/10

• Efficient targeted removal (Assassin's Trophy, Putrefy) and board wipes, but minimal stack interaction.

Rating Justification:

This deck operates at a 6.0 - 6.5 power level, capable of focused T7-8 wins through infect combat or proliferate synergies. While its tutor density and counter-doubling accelerate its game plan, reliance on creature-based strategies and vulnerability to board wipes keep it below optimized combo tiers.

Power level: 6.0 - 6.5