Is Wild Cantor legal in Standard, Modern, and Commander?

Wild Cantor is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Wild Cantor

Q: What type of card is Wild Cantor?

Wild Cantor is a Creature — Human Druid. Its oracle text reads: "({R/G} can be paid with either {R} or {G}.) Sacrifice this creature: Add one mana of any color. *They are the voice of the wild, crying out with nature's fury and bringing forth its primeval might.* Power/Toughness: 1/1"