Is Knight-Errant of Eos legal in Standard, Modern, and Commander?

Knight-Errant of Eos is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Knight-Errant of Eos

Q: What type of card is Knight-Errant of Eos?

Knight-Errant of Eos is a Creature — Human Knight. Its oracle text reads: "Convoke When this creature enters, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked this creature. Put the revealed cards into your hand, then shuffle. Power/Toughness: 4/4"

Creature — Human Knight

Convoke

When this creature enters, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked this creature. Put the revealed cards into your hand, then shuffle.

Power/Toughness: 4/4

Set March of the Machine

Rarity Rare

Mana Value 5

Artist Kevin Sidharta

Collector # 26

Scryfall