Is Bladed Sentinel legal in Standard, Modern, and Commander?

Bladed Sentinel is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Bladed Sentinel

Q: What type of card is Bladed Sentinel?

Bladed Sentinel is an Artifact Creature — Construct. Its oracle text reads: "{W}: This creature gains vigilance until end of turn. *The Mirran partisans created hundreds of patrol sentinels to divert Phyrexian assaults from the Tangle.* Power/Toughness: 2/4"