- "Light is shining shadow. Shadow is silent light. We are one!"
- ― Majesty Lord Blaster
- "Light belongs to shadow, shadow to light
- Chasing one another to the very end"
- ― Bonnie Pink, Tales of Vesperia, "Ring a Bell" (translated)
The power to gain strength from any/all opposing forces. Variation of Affinity.
- Opposing Forces Affinity/Augmentation
- Opposing Powers Affinity/Augmentation/Empowerment
- Opposites Affinity/Augmentation/Empowerment
User becomes stronger, faster, more durable, etc. from any/all opposing forces, possibly unlocking abilities related to the affinity and enhancing their existing powers. Some users may be able to draw sustenance from opposing forces or even stop or slow aging.
- Decelerated Aging/Semi-Immortality
- Enhanced Condition or Supernatural Condition
- Self-Power Augmentation
- Antithetical Symbiosis
- Morality Empowerment
- Science-Magic Mixture
- Yin & Yang Manipulation
- Ichigo Kurosaki (Bleach)
- Robert Dudley (Horizon In The Middle of Nowhere)
- Victor von Doom/Doctor Doom (Marvel Comics)
- Asuna Kagurazaka (Negima)
- Takamichi T. Takahata (Negima)
- Jacen Solo (Star Wars Legends)
- Reid Hershel (Tales of Eternia)
- Meredy (Tales of Eternia)
- Ryu (Street Fighter Unlimited); via "Shin Ryu" state
- Barry Allen/The Flash (DC Comics); formerly
- Meena Dhawan/Negative Flash (DC Comics)
- Yusuke Urameshi (Yu Yu Hakusho)