Dragon's Mountain - Technique
n B Striking as Water
Rank: 1
Activation: When you make a Martial Arts [Melee, Ranged, or Unarmed] (Water) Attack action check, you may spend L in the following way:
Water L+: Your target treats their physical resistance as 1 lower per L spent this way. This effect persists until the end of your next turn.
Source: Core Book Pg. 178