Is Purestrain Genestealer legal in Standard, Modern, and Commander?

Purestrain Genestealer is legal in: Legacy, Vintage, Commander.

Purestrain Genestealer

Q: What type of card is Purestrain Genestealer?

Purestrain Genestealer is a Creature — Tyranid. Its oracle text reads: "This creature enters with two +1/+1 counters on it. Vanguard Species — Whenever this creature attacks, you may remove a +1/+1 counter from it. If you do, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Power/Toughness: 1/1"

Creature — Tyranid

This creature enters with two +1/+1 counters on it.

Vanguard Species — Whenever this creature attacks, you may remove a +1/+1 counter from it. If you do, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Power/Toughness: 1/1

Set Warhammer 40,000 Commander

Rarity Uncommon

Mana Value 3

Artist Games Workshop

Collector # 97

Scryfall