You may have been surprised to find Cancer, a traditionally sensitive and emotional sign, on this list.
But this sign has a startling hunger for vengeance, especially towards those closest to them.
Equally fast to make planned manoeuvres are analytical Virgos, who use their attention to detail and intelligence to "develop vicious plans.
She cautions that Virgos may not be presenting their true self, so you should avoid making enemies with these rapid thinkers.
This earth sign, represented by the bull, is composed of trustworthy dedicated workers.
Yet, they are also easily agitated, and Newman notes that Taurus will counterattack if they are offended.
Similar to Aries, another fire sign, Leos are naturally drawn to the limelight and will take advantage of any opportunity to remain there.
She claims that Leos would design a variety of retaliatory strategies and trash their adversaries in a malicious manner.
This sign does not like being taken advantage of or treated disrespectfully.
Aries as "uncompromising and combative;" hence, if they feel personally assaulted, they will not allow others to walk all over them.