Is Simian Sling legal in Standard, Modern, and Commander?

Simian Sling is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Simian Sling

Q: What type of card is Simian Sling?

Simian Sling is an Artifact Creature — Equipment Monkey. Its oracle text reads: "Equipped creature gets +1/+1. Whenever this creature or equipped creature becomes blocked, it deals 1 damage to defending player. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)"

Artifact Creature — Equipment Monkey

Equipped creature gets +1/+1.

Whenever this creature or equipped creature becomes blocked, it deals 1 damage to defending player.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)