Is Basilica Guards legal in Standard, Modern, and Commander?

Basilica Guards is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

What type of card is Basilica Guards?

Basilica Guards is a Creature — Human Soldier. Its oracle text reads: "Defender Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) *"None may pass . . . for free."* Power/Toughness: 1/4"