As Outpost Siege enters the battlefield, choose Khans or Dragons. • Khans — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card. • Dragons — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.
"Only the weak imprison themselves behind walls. We live free under the wind, and our freedom makes us strong." —Zurgo, khan of the Mardu