Is Zombie Mob legal in Standard, Modern, and Commander?

Zombie Mob is legal in: Legacy, Vintage, Commander.

Zombie Mob

Q: What type of card is Zombie Mob?

Zombie Mob is a Creature — Zombie. Its oracle text reads: "Zombie Mob enters with a +1/+1 counter on it for each creature card in your graveyard.When Zombie Mob enters, exile all creature cards from your graveyard."

Creature — Zombie

Zombie Mob enters with a +1/+1 counter on it for each creature card in your graveyard.<br>When Zombie Mob enters, exile all creature cards from your graveyard.

Set Mirage

Rarity Uncommon

Artist Terese Nielsen