Is Oreskos Explorer legal in Standard, Modern, and Commander?

Oreskos Explorer is legal in: Legacy, Vintage, Commander.

Oreskos Explorer

Q: What type of card is Oreskos Explorer?

Oreskos Explorer is a Creature — Cat Scout. Its oracle text reads: "When this creature enters, search your library for up to X Plains cards, where X is the number of players who control more lands than you. Reveal those cards, put them into your hand, then shuffle."

Creature — Cat Scout

When this creature enters, search your library for up to X Plains cards, where X is the number of players who control more lands than you. Reveal those cards, put them into your hand, then shuffle.

Set Commander Masters

Rarity Uncommon

Mana Value 2

Artist Winona Nelson

Collector # 832

Scryfall Gatherer