Shall not Falter, Shall not Rout
Calling out the fifth line of the Crimson Oath, you seal your most grievous injuries with a stroke of your blade. The first time each round that you Strike with your weapon and deal damage to a foe, you recover a number of HP equal to twice shall not falter, shall not rout's level. This healing can't raise your current HP above half of your maximum HP.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Focus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
A healing effect restores a creature's body, typically by restoring Hit Points, but sometimes by removing diseases or other debilitating effects.