Muster the Rohirrim

Reveal the top 4 cards of your library. You
may put a creature card from among them
into your hand. Put the rest on the bottom
of your library in any order. Create a 2/2
white Knight token with vigilance.
"Now is the hour! Riders of Rohan - oaths
you have taken. Now, fulfil them all - to
Lord and land!" ~ Eomer