Thrashing Demise

While this Synaptic Imperative ability is active
for your army and a friendly HIVE TENDRIL
unit is within 6" of this SYNAPSE model:
•Each time you roll a dice for the Death Throes
ability of a model in that unit, add 3 to the roll.
•Each time a model is destroyed in that unit
as a result of a melee attack, if that model does
not have the Death Throes ability, roll one D6:
on a 6, the attacking model’s unit suffers 1 mortal
wound after making all of its attacks.