Is Thoughtcutter Agent legal in Standard, Modern, and Commander?

Thoughtcutter Agent is legal in: Modern, Legacy, Vintage, Commander.

Thoughtcutter Agent

Q: What type of card is Thoughtcutter Agent?

Thoughtcutter Agent is an Artifact Creature — Human Rogue. Its oracle text reads: "{U}{B}, {T}: Target player loses 1 life and reveals their hand. *Agents of the Architects of Will mark their victims as a reminder that their secrets are secret no longer.* Power/Toughness: 1/1"