Is Fervent Paincaster legal in Standard, Modern, and Commander?

Fervent Paincaster is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Fervent Paincaster

Q: What type of card is Fervent Paincaster?

Fervent Paincaster is a Creature — Human Wizard. Its oracle text reads: "{T}: This creature deals 1 damage to target player or planeswalker. {T}, Exert this creature: It deals 1 damage to target creature. (An exerted creature won't untap during your next untap step.) *"Everyone here is a honed fighter. We'll respond the only way we know how."* Power/Toughness: 3/1"