Grethen, Ruthless General

Flying, Trample
At the beginning of your upkeep and end step,
create a 2/2 white dragon creature token with
flying and haste if it's the first time this ability
was activated this turn and a 1/4 black dragon
creature token with deathtouch if it's the second.
{w}{w}{b}{b}{r}{r}: Deal damage to target creature or player equal to the number of dragons you control.