Is Fell Stinger legal in Standard, Modern, and Commander?

Fell Stinger is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Fell Stinger

Q: What type of card is Fell Stinger?

Fell Stinger is a Creature — Zombie Scorpion. Its oracle text reads: "DeathtouchExploit (When this creature enters, you may sacrifice a creature.)When Fell Stinger exploits a creature, target player draws two cards and loses 2 life."

Creature — Zombie Scorpion

Deathtouch<br>Exploit (When this creature enters, you may sacrifice a creature.)<br>When Fell Stinger exploits a creature, target player draws two cards and loses 2 life.

Set Pioneer Masters

Rarity Uncommon

Artist Lars Grant-West