Solemn Oath

Creatures you control get +2/+2 and gain lifelink and vigilance until end of turn.
"We, the people's of Evergreen, have taken up
arms to wage a relentless struggle against the bloodthirsty enemies who have attacked our country. In the name of liberty, we swear we
shall not spare our life in fighting the demon invaders until they are completely annihilated."