Mitr Juggernaut

Idle {3}{r}{g} (If you cast this card for its idle cost, it's
an Equipment spell that enters the battlefield attached
to a creature of your choice. It becomes a creature
again if not attached to a creature.)
Trample
Equipped creature gets +3/+3 and has trample.
Large Mitr are often used for construction. Others are
a bit rough around the edges.