65-80% Cleave for 5 seconds on Critical Hit.
Hitting at least 3 enemies with an attack, increases your damage by 24-36% for 3 seconds.
Increased Cleave on Critical Hit and gain 10-25% Ranged Attack Stagger.
6-12% Critical Chance for each Enemy Hit by your previous attack. Stacks 5 times.
Experience, nothing matters more for this semi-lore-accurate beast of a tank, still running his trusty chainsword and will ground god into the dirt with a firm word. His toughness curios were given to him by Pasqal. Add some health because, well, despite everything, health curios are superior. Then add some block perks and ability regen.
You can replace the two chainsword blessings with bloodletter and bloodthirsty. Shotgun because who didn't give him a shotgun.
Give Abelard some frags and tell him to get back in the fight but move faster.
Field improvisation as medicae perk, going into voice of command which is basically your Do Not Falter equivalent, combined with Do Not Falter. Basically the stuff that gives the squad toughness. Skirmisher as charge.