Is Talus Paladin legal in Standard, Modern, and Commander?

Talus Paladin is legal in: Modern, Legacy, Vintage, Commander.

Talus Paladin

Q: What type of card is Talus Paladin?

Talus Paladin is a Creature — Human Knight Ally. Its oracle text reads: "Whenever this creature or another Ally you control enters, you may have Allies you control gain lifelink until end of turn, and you may put a +1/+1 counter on this creature."

Creature — Human Knight Ally

Whenever this creature or another Ally you control enters, you may have Allies you control gain lifelink until end of turn, and you may put a +1/+1 counter on this creature.

Set Worldwake

Rarity Rare

Mana Value 4

Artist Svetlin Velinov

Collector # 21

Scryfall Gatherer