The Art Of War

Cannot be countered, indestructible.
All the following card &/or creature types
cost {1} less for you to cast: advisor, ally,
elephant, equipment, horse, human, knight,
legendary, mercenary, rebel, samurai, soldier,
vehicle, wall, warrior.
{3}: Tap 3 creatures you control: Draw 1 card,
you gain 1 life.
"He will win who knows when to fight,
and when not to fight." ~Sun Tzu