Is Sparring Dummy legal in Standard, Modern, and Commander?

Sparring Dummy is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Sparring Dummy

Q: What type of card is Sparring Dummy?

Sparring Dummy is an Artifact Creature — Scarecrow. Its oracle text reads: "Defender {T}: Mill a card. You may put a land card milled this way into your hand. You gain 2 life if a Lesson card is milled this way. (To mill a card, put the top card of your library into your graveyard.)"

Artifact Creature — Scarecrow

$0.12 ↗20 similarCommander, Modern

Defender

: Mill a card. You may put a land card milled this way into your hand. You gain 2 life if a Lesson card is milled this way. (To mill a card, put the top card of your library into your graveyard.)