Is Veldt legal in Standard, Modern, and Commander?

Veldt is legal in: Legacy, Vintage, Commander.

What type of card is Veldt?

Veldt is a Land. Its oracle text reads: "Veldt doesn't untap during your untap step if it has a depletion counter on it.At the beginning of your upkeep, remove a depletion counter from Veldt.{T}: Add {G} or {W}. Put a depletion counter on Veldt."

Veldt

Land

Veldt doesn't untap during your untap step if it has a depletion counter on it.<br>At the beginning of your upkeep, remove a depletion counter from Veldt.<br>: Add or . Put a depletion counter on Veldt.