March of the Crusaders

Soldiers and Knights you control get +1/+1 and
Trample.
Whenever a creature you control attacks, create a
1/1 white Human Soldier creature token tapped
and attacking the same target. If you attacked
with at least four or more non-token creatures
this turn, untap all the lands you control.
{3}{w}{r}: Create a 2/2 white and red Human
Knight creature token with Vigilance.