Is Spirit Link legal in Standard, Modern, and Commander?

Spirit Link is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Spirit Link

Q: What type of card is Spirit Link?

Spirit Link is an Enchantment — Aura. Its oracle text reads: "Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)Whenever enchanted creature deals damage, you gain that much life."

Enchantment — Aura

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)<br>Whenever enchanted creature deals damage, you gain that much life.

Set Legends

Rarity Uncommon

Artist Kaja Foglio