Is Vren, the Relentless legal in Standard, Modern, and Commander?

Vren, the Relentless is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Vren, the Relentless

Q: What type of card is Vren, the Relentless?

Vren, the Relentless is a Legendary Creature — Rat Rogue. Its oracle text reads: "Ward {2} If a creature an opponent controls would die, exile it instead. At the beginning of each end step, create X 1/1 black Rat creature tokens with "This token gets +1/+1 for each other Rat you control," where X is the number of creatures that were exiled under your opponents' control this turn. Power/Toughness: 3/4"

Legendary Creature — Rat Rogue

Ward

If a creature an opponent controls would die, exile it instead.

At the beginning of each end step, create X 1/1 black Rat creature tokens with "This token gets +1/+1 for each other Rat you control," where X is the number of creatures that were exiled under your opponents' control this turn.

Power/Toughness: 3/4

Set Bloomburrow

Rarity Rare

Mana Value 4

Artist Kevin Sidharta

Collector # 239

Scryfall