Requiem.

With your extensive knowledge of bioengineering, you have familiarized yourself with the various weakpoints of all kinds of creatures, one observation being that commonalities tend to be shared between them all; commonalities that can be exploited. So akin to a scalpel, you bring forth your arms in order to remove that which opposes you on your path to biological perfection.

When attacking a creature, you may decide to roll a Requiem die based on which part of their body you are targeting, as long as they possess distinct body parts.
On a hit, and a roll of 1 on the Requiem die, you benefit from the following result:

Head — 1d12
Your attack scores a critical hit, and the target suffers a penalty to its perception check equal to your Wisdom Modifier. This penalty lasts a number of rounds equal to your wisdom modifier.

Torso — 1d10
The target becomes vulnerable to the next instance of damage that it takes and has disadvantage on attacks until the end of its next turn.

Limbs, tails or other appendages — 1d8
That body part becomes inoperable until the target succeeds on a medicine check against your Monk's Focus DC.
An inoperable body part cannot use items, weapons or unarmed/natural attacks. Should a leg, wing or other appendage utilized for movement be made inoperable, the target suffers a reduction to its speed equal to your level. Each body part can be hit individually, allowing for the effects to stack per part hit. 

Furthermore, when you roll a Requiem die, you may decide to take a penalty to your to hit bonus in increments of 3 in order to increase the range at which you benefit from the result. (A roll of a 1 to 3 being a total penalty of -6, etc). 
This penalty applies to the attack roll, no matter what.