12.5-20% Critical Chance for 6s on successful Dodge.
45-60% Finesse Damage for 2s on successful Dodge.
-8.5--5.5% Charge Time on Chained Secondary Attack. Stacks 3 times.
Gain between 3.5-5% and 14-20% Critical Chance based on current level of peril.
Smite is probably one of or even the strongest ability for most auric damnation maps/missions and I regularly get the highest damage done and most lesser enemies killed with a combination of empowered smite and venting shriek. And in the meantime most elites, specials and ranged units are stunned and easy targets for your teammates.
Even if it sounds counterintuitive, I think it's best combined with a Surge staff as you want to be pushing forward aggressively and not stand around charging voidstrike bolts or other staffs. With high crit chance and empathic evasion / true aim (as long as Surge still hits weakspots) gunfire is no issue when closing the gap before locking everything down with smite.
It is also important to use the pushback to step back and quell in between smites and it requires good positioning and awareness. It can absolutely carry runs if your teammates are not braindead and run past the stunned mobs and leave you behind. It really shines on the highest difficulties because of the abundance of enemies and dangerous packs of ragers and crushers.
It's obviously not great against bosses and not always ideal for nurgles blessing maelstrom missions but for me personally it's the most fun and definetly the highest winrate psyker build.
Melee weapons and blessings are really up to preferences but high mobility for smite repositioning is the most important aspect as it's not really a build that wants to actually fight in melee.
Curios are also up to personal choice, the only thing that's necessary is a good Surge staff with the chosen blessings on a high tier.