The Blackthorn

First strike, trample, haste
At the beginning of your endstep, if The
Blackthorn dealt damage to any creature or
player this turn, put a +1/+1 counter on it. If
not, remove all +1/+1 counters on it.
{g}{g}, {t}: The Blackthorn fights target creature.
For Dalinar, life is about momentum.