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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.
Abilities, attacks, weakness & resistance
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Grand Arbiter Augustin IV (DIS 112, Rare) is a legendary Human Advisor creature from the Dissension set with blue and white color identity. It reduces the generic mana cost of white and blue spells you cast by {1} and increases opponents' spells' generic costs by {1}, affecting only the generic portion of mana costs. As a 2/3 legend, it commonly serves as a stax/control enabler that taxes opponents while accelerating your own UW spells.
Catalog pricing data as of 4 May 2026, 22:55