Psyker
This weapon Blocks both Melee and Ranged attacks. Additionally, Block Cost is reduced by 22.5-30%.
Hitting at least 3 enemies with an attack, restores 12-15% toughness.
2 Shots on Primary Critical Hit. 2-5% Ranged Crit Chance.
-8.5--5.5% Charge Time on Chained Secondary Attack. Stacks 3 times.
This build is literally the only build I use with Psychic Leeching.. combined with Dome shield/Kinetic Deflection/Deflection. You are so tanky vs ranged it's ridiculous and the consistent buff to the team with mass toughness on groups of ragers/shotgunners etc is incredibly useful. the horde rotation is, melee: sweep, sweep, sweep/2-3 assail/4-5 bolts from staff rinse and repeat.