Is Mammoth Harness legal in Standard, Modern, and Commander?

Mammoth Harness is legal in: Legacy, Vintage, Commander.

What type of card is Mammoth Harness?

Mammoth Harness is an Enchantment — Aura. Its oracle text reads: "Enchant creatureEnchanted creature loses flying.Whenever enchanted creature blocks or becomes blocked by a creature, the other creature gains first strike until end of turn."

Mammoth Harness

Enchantment — Aura

Enchant creature<br>Enchanted creature loses flying.<br>Whenever enchanted creature blocks or becomes blocked by a creature, the other creature gains first strike until end of turn.

Set Homelands

Rarity Rare

Artist Melissa A. Benson