Chinggis Khan

Haste, Vigilance, First Strike, When Chinggis Khan Dies, Exile It Instead.
All Mongols You Control Gain +1/+1 For Each Other Mongol You Control.
{1}{s}{ut}Untap All Creatures You Control: Tap All Blocking Creatures. They Don't Untap During Their Controller's Untap Step. Activate This Ability Only After Your Opponents Have Declared Blockers And Only If It Is Your Turn.
{2}{r/w}{t}: All Mongol Creatures You Control Gain Double Strike Until End Of Turn.