Khepri, Gold Mourning

When Khepri, Gold Mourning enters the battlefield, put X 3/3 White Insect tokens with flying, deathtouch and lifelink on the battlefield.
X is the number of permanents on the field.
{w}{b}{x}Gain control of X creatures until the start
of your next upkeep.
{x}Put 3/3 White Insect tokens with flying, deathtouch and lifelink equal to X.
{w}{b}When a permanent or player is
targeted, choose a new target.