Oath of Nahiri

When Oath of Nahiri enters the battlefield, you may search your library for an Equipment card, reveal it, and put it into your hand. Then shuffle your library.
At the beginning of your upkeep, up to one target creature gets +1/+0 and gains first strike and vigilance until end of turn for each planeswalker you control.
"Come, Emrakul. Together we will keep watch."