Is Eight-and-a-Half-Tails legal in Standard, Modern, and Commander?

Eight-and-a-Half-Tails is legal in: Modern, Legacy, Vintage, Commander.

What type of card is Eight-and-a-Half-Tails?

Eight-and-a-Half-Tails is a Legendary Creature — Fox Cleric. Its oracle text reads: "{1}{W}: Target permanent you control gains protection from white until end of turn. {1}: Target spell or permanent becomes white until end of turn. *"Virtue is an inner light that can prevail in every soul."* Power/Toughness: 2/2"