Is Hero of Bretagard legal in Standard, Modern, and Commander?

Hero of Bretagard is legal in: Legacy, Vintage, Commander.

Hero of Bretagard

Q: What type of card is Hero of Bretagard?

Hero of Bretagard is a Creature — Human Warrior. Its oracle text reads: "Whenever one or more cards are put into exile from your hand or a spell or ability you control exiles one or more permanents from the battlefield, put that many +1/+1 counters on this creature. As long as this creature has five or more counters on it, it has flying and is an Angel in addition to its other types. As long as this creature has ten or more counters on it, it has indestructible and is a God in addition to its other types."

Creature — Human Warrior

Whenever one or more cards are put into exile from your hand or a spell or ability you control exiles one or more permanents from the battlefield, put that many +1/+1 counters on this creature.

As long as this creature has five or more counters on it, it has flying and is an Angel in addition to its other types.

As long as this creature has ten or more counters on it, it has indestructible and is a God in addition to its other types.

Set Kaldheim Commander

Rarity Rare

Mana Value 3

Artist Heonhwa Choe

Collector # 4

Scryfall Gatherer