Dwarven Aristocrat

When Dwarven Aristocrat enters the battlefield,
search your library for a card with the subtype
Imperian, reveal it, and put it into your hand.
Then shuffle your library.
{t}: Create a 2/2 Knight Legendary Squire token
with haste and vigilance. (Legendary rules apply
to the token.)
"You boy! Hurry it up or I'll have you
working in the forges!"