Is Rime Transfusion legal in Standard, Modern, and Commander?

Rime Transfusion is legal in: Modern, Legacy, Vintage, Commander.

What type of card is Rime Transfusion?

Rime Transfusion is a Snow Enchantment — Aura. Its oracle text reads: "Enchant creature Enchanted creature gets +2/+1 and has "{S}: This creature can't be blocked this turn except by snow creatures." ({S} can be paid with one mana from a snow source.)"

Rime Transfusion

Snow Enchantment — Aura

Enchant creature

Enchanted creature gets +2/+1 and has ": This creature can't be blocked this turn except by snow creatures." ( can be paid with one mana from a snow source.)