Is Lotus Blossom legal in Standard, Modern, and Commander?

Lotus Blossom is legal in: Legacy, Vintage, Commander.

What type of card is Lotus Blossom?

Lotus Blossom is an Artifact. Its oracle text reads: "At the beginning of your upkeep, you may put a petal counter on this artifact. {T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of petal counters on this artifact."