Is Jade Orb of Dragonkind legal in Standard, Modern, and Commander?

Jade Orb of Dragonkind is legal in: Legacy, Vintage, Commander, Pauper.

Jade Orb of Dragonkind

Q: What type of card is Jade Orb of Dragonkind?

Jade Orb of Dragonkind is an Artifact. Its oracle text reads: "{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)"

Artifact

: Add . When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)