Is Deeproot Historian legal in Standard, Modern, and Commander?

Deeproot Historian is legal in: Legacy, Vintage, Commander.

Deeproot Historian

Q: What type of card is Deeproot Historian?

Deeproot Historian is a Creature — Merfolk Druid. Its oracle text reads: "Merfolk and Druid cards in your graveyard have retrace. (You may cast cards with retrace from your graveyard by discarding a land card in addition to paying their other costs.) *"The language of the Komon Winaq has much in common with the tongue of our ancestors. Surely the two peoples once lived and worked in close harmony."* Power/Toughness: 3/3"

Creature — Merfolk Druid

Merfolk and Druid cards in your graveyard have retrace. (You may cast cards with retrace from your graveyard by discarding a land card in addition to paying their other costs.)

*"The language of the Komon Winaq has much in common with the tongue of our ancestors. Surely the two peoples once lived and worked in close harmony."*

Power/Toughness: 3/3

Set The Lost Caverns of Ixalan Commander

Rarity Rare

Mana Value 4

Artist Stella Spente

Collector # 91

Scryfall