Cunning, scheming (13)
I believe the answer is:
machiavellian
I believe this is a double definition.
'cunning' is the first definition.
(thesaurus)
'scheming' is the second definition.
(thesaurus)
(Other definitions for machiavellian that I've seen before include "devious politically?" , "Perfidious" , "Crafty" , "Opportunistic" , "Cunning, scheming and unscrupulous" .)