Ornn, the Mountain's Forge

{x}{b}{r}, Create a Legendary Artifact Equipment
Token with "Equipped creature gains +X+X.
For every 3 mana spent this way, choose Ward 3,
Double Strike, Flying, Trample, or Lifelink.
Equipped creature gains all abilities
chosen this way."
{t}, Attach target Legendary equipment to a
Legendary creature you control. You may name
the equipment.