Iob Yohc, Smith of Smiths

Whenever a legendary creature enters the battlefield under your control, if it's white,
put your choice of either a first strike or a vigilance counter on it. Repeat this process
for blue and flying or hexproof, black and deathtouch or lifelink, red and haste or menace, and green and trample or reach. If
that creature was colorless, put two +1/+1 counters on it.