Purphoros's Emissary

Enchantment Creature — Ox

Oracle text:

Bestow {6} {R} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Menace (This creature can't be blocked except by two or more creatures.)
Enchanted creature gets +3/+3 and has menace.

3/3

Collection:

Theros

Rarity:

Uncommon