Tan Sri Muhammad Shafee Abdullah had some choice words to describe Low, who has been revealed to have attended exclusive parties with Najib during the former prime minister's heyday.
Low, according to Shafee, was the rascal behind the 1Malaysia Development Bhd (1MDB) episode which has resulted in his client sitting in the dock at the High Court here.
Also not spared was Najib's former special aide, Datuk Amhari Efendi Nazaruddin, who has been providing some damning evidence against his ex-boss since being called to testify as the 8th prosecution witness.
Amhari, Shafee said, had been working in cahoots with Low to rip off 1MDB.
The duo, he said, had conspired to dupe Najib, and Amhari had benefited handsomely from it.
"You have eaten from his (Low's) palm and are beholden to him," Shafee told Amhari after putting him through a series of questions on the latter's association with Low and his role in the 1MDB case.
Amhari disagreed with Shafee's suggestion but this did not stop the veteran counsel from having a field day trying to discredit the 46-year-old witness' testimony during the morning session of cross examination.
Shafee also tried to paint Najib as a leader who was forced to take on the 1MDB headache after the Terengganu Investment Authority (TIA) was formed.
"I put it to you that Najib did it because the reputation of the Sultan of Terengganu, who was also the Yang DiPertuan Agong then, was at stake.
"So when you say that this (1MDB) was Najib's baby, it was actually an orphan which nobody wanted," he said.
However, Amhari, responded by stating that he did not know such details.
Amhari had previously testified that TIA, which later became 1MDB, was Najib's baby.
However, his view later changed after Shafee showed him several documents – including Cabinet meeting minutes which had been declassified saying it was not Najib, but then Yang DiPertuan Agong Sultan Mizan Zainal Abidin, who suggested the formation of TIA.
Shafee today questioned Amhari about how Low had actually set his eyes on Terengganu's oil and gas as far back as 2008 but the latter said he was not aware about it.
Shafee: Wasn't this one of the reason the Sultan was unhappy with Low?
Amhari: I don't know about that
Shafee: But you know that the Sultan described Low as an unsavoury character?
Amhari: Yes from the minutes there were questions raised about his role
Shafee: You knew the Sultan disliked him but you failed to communicate this to your bosses and also to Najib?
Amhari: I disagree
Najib, 67, is facing 25 criminal charges of having used his position to obtain gratification amounting to RM2.3 billion of 1MDB funds and money laundering involving the same money.
The trial before judge Collin Lawrence Sequerah continues.