诡变多端

Explanation: Guibian: Cunning variable; side: projects, points. Described as a bad idea a lot. 　　Source: Song Zhe, "On the Lvhui Qing": "Debate Huai Zhang Tang fraud, the traitor and Lu Qi fierce, Guibian many-fold." Thesaurus:  tricky, Ghost meter quick, malicious intrigues, underplot, a Judas kiss, With an eye to Ghost, mean ill (to sb. [by sb.]), to talk sweetly while harboring evil thought Antonym Group:  play the game, (as) open as the day, act in a fair or honourable way, Row Defiance pathway, Row Cannot but pathway