Aragorn, Isildur's Heir

First Strike, Vigilance
When Aragorn, Isildur's Heir enters the battlefield, another target player becomes
the Monarch.
Aragorn, Isildur's Heir can't attack or block as
long as you're the Monarch.
If you would draw a card during your end phase,
you may search your library for a legendary
artifact and put it onto the battlefield instead.