Is Otherworldly Escort legal in Standard, Modern, and Commander?

Otherworldly Escort is legal in: Legacy, Vintage, Commander.

Otherworldly Escort

Q: What type of card is Otherworldly Escort?

Otherworldly Escort is a Creature — Human Detective. Its oracle text reads: "Flash When this creature dies, if it's not a Spirit, return it to the battlefield under its owner's control with four charge counters on it. It's a Spirit Detective. (It's no longer a Human.) {1}{W}, {T}, Remove a charge counter from this creature: Destroy target creature that dealt damage to you this turn."

Creature — Human Detective

Flash

When this creature dies, if it's not a Spirit, return it to the battlefield under its owner's control with four charge counters on it. It's a Spirit Detective. (It's no longer a Human.)

, , Remove a charge counter from this creature: Destroy target creature that dealt damage to you this turn.