Is Cabal Conditioning legal in Standard, Modern, and Commander?

Cabal Conditioning is legal in: Legacy, Vintage, Commander.

Cabal Conditioning

Q: What type of card is Cabal Conditioning?

Cabal Conditioning is a Sorcery. Its oracle text reads: "Any number of target players each discard a number of cards equal to the greatest mana value among permanents you control. *"Hear only the Cabal's voice. See only the Cabal's way. Speak only the Cabal's word." —Cabal mantra*"