Every survivor rank will increases the maximum amount of auras you can use at once.
You can earn survivor ranks by completing total achievement milestones at 25 - 50 - 75 - 100.

• Survivor Level 2 = Green Aura Unlocked
  
• Survivor Level 3 = Purple Aura Unlocked
  
• Survivor Level 4 = Yellow Aura Unlocked
  
• Survivor Level 5 = Red Aura Unlocked

Aura Re-Rolls cost 100 Gold
Locking a specific aura will cost a marble of that color.
That marble will turn to dust if you lock an aura and click re-roll.
If you unlock an aura without re-rolling that marble will return back to you.

Green Auras

• Status Effect Duration 10%
  
• Loot Distance 10%
  
• Projectile Speed 10%
  
• Max Health 10%
  
• Weapon Unlock Speed +25% (Does Not Stack)
  
• Thorns 10%
  
• Movement Speed 10%
  
• Area of Effect Duration 10%
  
• Area of Effect 10%
  
• Elemental Resistance 10%

Purple Auras

• Boss Damage 10%
  
• Critical Chance 10%
  
• Damage to Afflicted 10%
  
• Absorb Damage 10%
  
• Physical Damage 10%
  
• Rescue Distance +50% (Does Not Stack)
  
• Magical Damage 10%
  
• Limit Break Duration 10%
  
• Limit Break 10%
  
• Attack Cooldown 10%

Yellow Auras

• Follower Damage 10%
  
• Experience Earned 10%
  
• Targets +1 (Does Not Stack)
  
• Revive +1
  
• Catch Up +25% (Does Not Stack)
  
• Experience Share 10%
  
• Gold Total 10%
  
• Critical Damage 10%
  
• Projectile +1 (Does Not Stack)
  
• Drop Rate 10%

Red Auras

• Artifact Summons +1
  
• Follower Move Speed 25%
  
• Soulfire Damage 25%
  
• Lockpicking (No longer requires lockpick artifact to unlock doors)
  
• Status Effect Damage 10%
  
• Aura Base Percentage Bonus 5% (Does Not Stack)