They have a couple of unique rules
A white agent, when injured or disoriented or low-resourced, will tend to double down on structuretrying to force things into place, ignoring or attacking anything that threatens to not-fit its preconceptions
When resolving an opponent's card effect that targets this card, roll a six-sided die and negate that effect if you roll a 3, and if you do, destroy that card
It has the effect of increasing his ATK of his Jurracs in the field, including himself, according to the number of Jurracs in his GY
Thassa, Deep-Dwelling or Conjurer's Closet are other ways around the unearth issue, allowing you to keep your creatures and even have them go to the graveyard again when they die
(-3 Loyalty: Destroy target creature.): great in a creature-heavy Standard, useless against several decks in the older formats