Crushing Steel
Source
Starfinder Enhanced pg. 75
While you are wearing heavy armor or powered armor, you can deal bludgeoning damage equal to your key ability score modifier once per round when you succeed at a grapple combat maneuver check to renew a grapple. If your grappled foe is at least one size category smaller than you, add half your soldier level to the damage dealt.
Dragonscript
ID
07b97689431e86c48aa3a224