Is Adaptive Gemguard legal in Standard, Modern, and Commander?

Adaptive Gemguard is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Adaptive Gemguard

Q: What type of card is Adaptive Gemguard?

Adaptive Gemguard is an Artifact Creature — Gnome. Its oracle text reads: "Tap two untapped artifacts and/or creatures you control: Put a +1/+1 counter on this creature. Activate only as a sorcery. *Left their own devices, gnomes reengineer their own devices.* Power/Toughness: 3/3"