pf2e.fyi
From Pathfinder Impossible Magic, which isn't enabled.

Engraving Strike

FEAT 1
Activity 1 action

Requirements You are wielding a melee weapon.

You draw a rune onto the surface of your weapon in reverse, the mark branding or bruising itself into your target at the moment of impact. Make a melee strike with the weapon. On a success, you Trace a Rune onto the target of the Strike.

Pathfinder Impossible MagicORC