Summoning Reaping Knives on someone change his weapon set to the knives, but there is a way to alter that :

After the Reaping Knives are summoned, the "target" cant change his weapons but can change his form : Spiritshifting or drinking a Potion of the Fearless Brute is allowed. When the form effect expire, the target return to his weapon set , and have as beneficial effect "reaping knives". The effect is now different : 5 focus per hit. Multi-hits weapons generate quickly the focus for the caster, and with Hemmorhaging 's Effort, every hit from spell generate now 5 focus too.

 

Weapons like Keeper of the Flame or WotEP can "focus-back" 10 focus per hit, the area of effect is generating only for 1 hit.

 

This is a little tweak since I personally never used Reaping Knives for the focus back, but against Boss or whatever that can be useful. 

Edited January 4, 20224 yr by Constentin Lévine

Reaping Knives always only give 5 focus per hit to the cipher who cast them. 

But having that effect on multihit-weapons is pretty cool.

 

23 minutes ago, Boeroer said:

Reaping Knives always only give 5 focus per hit to the cipher who cast them. 

But having that effect on multihit-weapons is pretty cool.

 

And that work also with your technic : Concelhaut's Draining Touch remove the first Reaping slot

Yeah, I tried to keep Reaping Knives with Draining Touch and Minor Blights - like I did with Llengrath's Great Sword. Sadly Reaping Knives will still disappear. 

But I didn't notice that the new weapon that replaced the r-knives will retain the r-knives' focus harvesting effect.