Just a regular old Gauntlet crusher. Great against the high-MMR decklists, with a reasonable match-up against bosses. Though, against bosses I might swap in Defiances for Saviors.
Pretty easy to pilot, though the market choices can be tough until you learn all the AI's tricks. Gates of Hope is awesome to let you keep pressuring with Rolant or Makto while cranking up your armor to get value off a Backbreaker or Knife. Tomb is more situational, but Rolant with Revenge is sweet and the rest of the agenda is fine. Pristine/End are emergency cards for when the Harsh Rules just aren't showing up. Cast into Shadow is just a 2for1 against some decks, and is gross with Rolant.
Remember that Harsh Rule with Rolant on-board still makes the valkyries, after the board has been wiped. It makes for a good line of defense to let you slam a weapon, get firm control of the board, and then Gates of Hope to lock down a win. Kesava is a silly hero.