Mason, Battle Mage

Rally-Whenever Mason, Battlefield Mage or
another ally enters the battlefield under your
control, put X +1/+1 counters on each ally
you control, where X is half the number of allies
you control, rounded up
{r/w},{t}: Allies you control gain vigilance until end
of turn
{u/r},{t}: Allies you control gain lifelink until end
of turn
{w/u},{t}: Create a 1/1 white kor ally token