Lighter
From WikiRaider
The Lighter (or Zippo™) is an item collected by Lara in Tomb Raider (2013).
Tomb Raider (2013)
Lara finds the lighter in an abandoned helicopter in Shanty Town. She takes it off the dead pilot who is still sitting in his pilots seat and uses it to heat an arrow head in order to cauterize a wound sustained earlier.
After that it enables her to shoot Fire Arrows: She tapes the lighter to her Bow to light up an arrow when needed.