The Second Horseman, War

Trample
{b}{b}: All creatures able to defend this turn must
do so. Attacking creatures gain +1/+1.
{t},{b}: All creatures able to attack this turn must
do so. You may activate this ability as an instant.
"And there went out another horse that was red: and
power was given to him that sat thereon to take peace
from the earth, and that they should kill one another:
and there was given unto him a great sword."