Legendary Creature — Human Advisor

White spells you cast cost {1} less to cast.
Blue spells you cast cost {1} less to cast.
Spells your opponents cast cost {1} more to cast.

The Arbiter is a conduit of justice, a will so disciplined that it dispenses justice without ego or remorse.

Artist(s): Zoltan Boros & Gabor Szikszai