Entropic Penetration
Source
Starfinder Enhanced pg. 82
You can tightly focus entropic energies in order to penetrate an enemy’s defenses. As a move action, you can spend 1 Entropy Point to enable your entropic strike attacks to treat the acid resistance of targets as 5 lower (minimum 0) for the purposes of resisting the weapon’s acid damage. At 15th level, these attacks instead treat the acid resistance of targets as 10 lower, and such attacks deal their minimum acid damage to targets immune to acid rather than dealing no damage. This effect lasts a number of round equal to your Constitution modifier.
Dragonscript
ID
10805693acad76d4c221551f