Is Spell Satchel legal in Standard, Modern, and Commander?

Spell Satchel is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

What type of card is Spell Satchel?

Spell Satchel is an Artifact. Its oracle text reads: "Magecraft — Whenever you cast or copy an instant or sorcery spell, put a book counter on this artifact. {T}, Remove a book counter from this artifact: Add {C}. {3}, {T}, Remove three book counters from this artifact: Draw a card."