Is Lazotep Chancellor legal in Standard, Modern, and Commander?

Lazotep Chancellor is legal in: Modern, Legacy, Vintage, Commander, Historic.

Lazotep Chancellor

Q: What type of card is Lazotep Chancellor?

Lazotep Chancellor is a Creature — Zombie Wizard. Its oracle text reads: "Whenever you discard a card, you may pay {1}. If you do, amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)"

Creature — Zombie Wizard

Whenever you discard a card, you may pay . If you do, amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)