Is Etherium Pteramander legal in Standard, Modern, and Commander?

Etherium Pteramander is legal in: Modern, Legacy, Vintage, Commander, Historic.

What type of card is Etherium Pteramander?

Etherium Pteramander is an Artifact Creature — Salamander Drake. Its oracle text reads: "Flying This creature can block only creatures with flying. {6}{B}: Adapt 4. This ability costs {1} less to activate for each other artifact you control. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.) Power/Toughness: 1/1"

Etherium Pteramander

Artifact Creature — Salamander Drake

Flying

This creature can block only creatures with flying.

: Adapt 4. This ability costs less to activate for each other artifact you control. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.)