Is Covenant of Blood legal in Standard, Modern, and Commander?

Covenant of Blood is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Covenant of Blood

Q: What type of card is Covenant of Blood?

Covenant of Blood is a Sorcery. Its oracle text reads: "Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Covenant of Blood deals 4 damage to any target and you gain 4 life."