Dragon's Mountain - Technique
l B Striking as Fire
Rank: 1
Activation: When you make a Martial Arts [Melee, Ranged, or Unarmed] (Fire) Attack action check, you may spend L in the following way:
Fire L+: The next time your target suffers a critical strike, increase its severity by 1 per L spent this way. This effect persists until the end of your next turn.
Source: Core Book Pg. 178