Is Hollow Trees legal in Standard, Modern, and Commander?

Hollow Trees is legal in: Legacy, Vintage, Commander.

Hollow Trees

Q: What type of card is Hollow Trees?

Hollow Trees is a Land. Its oracle text reads: "Hollow Trees enters tapped.You may choose not to untap Hollow Trees during your untap step.At the beginning of your upkeep, if Hollow Trees is tapped, put a storage counter on it.{T}, Remove any number of storage counters from Hollow Trees: Add {G} for each storage counter removed this way."

Land

Hollow Trees enters tapped.<br>You may choose not to untap Hollow Trees during your untap step.<br>At the beginning of your upkeep, if Hollow Trees is tapped, put a storage counter on it.<br>, Remove any number of storage counters from Hollow Trees: Add for each storage counter removed this way.