Dalinar Kholin, the Blackthorn

First Strike
Whenever Dalinar, the Blackthorn attacks, you
may exile a creature card from your hand face
down and pay {u/r}{u/r}. If you do, the storm arrives.
Until end of turn, you may cast the exiled card as though it had flash and it gains haste.
"The most important step a man can take. It's not the
first one, is it? It's the next one. Always the next step, Dalinar."