Is Rusko, Clockmaker legal in Standard, Modern, and Commander?

Rusko, Clockmaker is legal in: Historic.

Rusko, Clockmaker

Q: What type of card is Rusko, Clockmaker?

Rusko, Clockmaker is a Legendary Creature — Human Artificer. Its oracle text reads: "When Rusko, Clockmaker enters the battlefield, conjure a card named Midnight Clock onto the battlefield. Whenever you cast a noncreature spell, put an hour counter on each permanent you control named Midnight Clock. Each opponent loses 1 life and you gain 1 life."

Legendary Creature — Human Artificer

When Rusko, Clockmaker enters the battlefield, conjure a card named Midnight Clock onto the battlefield.

Whenever you cast a noncreature spell, put an hour counter on each permanent you control named Midnight Clock. Each opponent loses 1 life and you gain 1 life.

Set Mystery Booster 2

Rarity Uncommon

Mana Value 4

Artist Samuel Perin

Collector # 263

Scryfall Gatherer