Nightstalker

Custom Kidou

• Name: Nightstalker
  
• Type: utility
  
• Number: custom
  
• Effects: With but an utterance, the user's eyes become like those of a beast. The pupils become narrow vertical slits while the irises glow with a bright acid green. With these eyes, the user can see in the dark.
  
• Incantation:
  
• Notes:
  

Daisuke can use this spell as many times as he wants. While activated, Daisuke's vision is only in black and white.

You must write the incantation down.
How well can the user see in the dark? Is it like wearing night vision goggles? Can it pierce through even the DENSEST cloak of darkness? Put more detail.