Atraxa, Grand Unifier
Mana Cost: 3GWUB
Type: Legendary Creature - Phyrexian Angel
Text: Flying, Vigilance, Deathtouch, Lifelink
When Atraxa, Grand Unifier enters the battlefield, reveal the top ten cards of your library. For each card type, you may put a card of that type into your hand. The rest go on the bottom of your library in a random order.

Card Discussion
Atraxa, Grand Unifier is designed for value. Her ability to draw multiple cards from different types rewards diverse deckbuilding. The reveal also ensures you can find critical cards, offering tactical advantages mid-game. Her powerful combat abilities mirror those of Praetors' Voice, making her a formidable presence both offensively and defensively. In Commander, she shines as a resource engine, making her ideal for toolbox or flicker-based strategies.

Combos

• Flicker Synergy: Abuse Ephemerate or Ghostly Flicker to repeatedly trigger Atraxa’s ETB for incremental advantage.
  
• Reanimation: Pair with Animate Dead or Yawgmoth’s Will to bring Atraxa back for multiple triggers.
  
• Panharmonicon: Double Atraxa’s ETB trigger to increase your hand advantage significantly.
  
• Artifact Utility: Include Mystic Forge and Cloud Key for artifact-heavy strategies that consistently synergize with her ETB ability.
  
• Tutors: Cards like Academy Rector and Eladamri’s Call ensure you find vital components to maximize Atraxa’s card advantage.

Tips for Deckbuilding

• Diversify Card Types: Include lesser-used card types like sagas (The Eldest Reborn) or battles (Invasion of Fiora) to maximize Atraxa’s ETB trigger.
  
• Ramp Heavy: Cards like Skyshroud Claim and Mana Crypt ensure Atraxa comes out early, maximizing her impact.
  
• ETB Synergy: Add Conjurer’s Closet and Deadeye Navigator for consistent access to her trigger.
  
• Late Game Finishing Power: Use her card advantage to fetch finishers like Avenger of Zendikar or Approach of the Second Sun.
  

Atraxa in Commander
Atraxa, Grand Unifier offers immense value in Commander:

• Toolbox Strategies: Use her ETB ability to dig for answers and adapt to any board state.
  
• Multitype Synergies: Build decks to include a variety of card types to draw maximum value from her ETB trigger.
  
• Reanimator Archetypes: Her ETB ability makes her a top-tier reanimation target for decks built around recursion.
  
• Adaptive Play: Her ability to refill your hand ensures she remains relevant throughout the game.
  

Conclusion
Atraxa, in both iterations, exemplifies strategic depth and versatility. Atraxa, Praetors’ Voice, is unmatched in proliferate and synergy-focused builds, while Atraxa, Grand Unifier, redefines resource management with her ETB ability. Both shine in Commander, offering adaptability and thematic richness to deckbuilding. Their presence on the battlefield signals power and precision, cementing Atraxa as a hallmark of Magic’s legendary creature design.