Land Sweeper

Trample.
Crew 4 (Tap up to 4 creatures with a converted
power of four or more. This artifact becomes an artifact creature until the end of the turn )
Mechafuse, {3}{g}{r}: discard Land Sweeper, as
long as land sweeper is in the graveyard. Target vehicle or Mech has +4/+4, Flying, Trample
and is a vehicle in addition to its types.