Is Bitterblade Warrior legal in Standard, Modern, and Commander?

Bitterblade Warrior is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Bitterblade Warrior

Q: What type of card is Bitterblade Warrior?

Bitterblade Warrior is a Creature — Jackal Warrior. Its oracle text reads: "You may exert this creature as it attacks. When you do, it gets +1/+0 and gains deathtouch until end of turn. (An exerted creature won't untap during your next untap step.)"

Creature — Jackal Warrior

$0.05 ↗20 similarCommander, Modern

You may exert this creature as it attacks. When you do, it gets +1/+0 and gains deathtouch until end of turn. (An exerted creature won't untap during your next untap step.)

Set Amonkhet

Rarity Common

Mana Value 2

Artist Slawomir Maniak

Collector # 157