Is Tendershoot Dryad legal in Standard, Modern, and Commander?

Tendershoot Dryad is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Tendershoot Dryad

Q: What type of card is Tendershoot Dryad?

Tendershoot Dryad is a Creature — Dryad. Its oracle text reads: "Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) At the beginning of each upkeep, create a 1/1 green Saproling creature token. Saprolings you control get +2/+2 as long as you have the city's blessing."