Broken Oath

Each creature you cast this turn has:
•Hast or Flash.
•Add {b}{b} when they enter the battlefield.
•Casting cost {b}{b} less to cast.
{bull}Draw two cards when they enter the battlefield.
And now the king said: I have broken the oath
because thy people did carry away the daughters
of my people; therefore, in my anger I did cause
my people to come up to war against thy people.
-Mosiah 20:15