Grand Arbiter Augustin IV - [Foil] Double Masters 2022 (2X2) FUT you may add an amount

you may add an amount of {C} equal to the number of creatures you control that share a creature type with it

Seachrome Coast enters the battlefield tapped unless you control two or fewer other lands

redeemed in Gideon's hand

You may return an Island you control to its owner's hand rather than pay this spell's mana cost

When Great Whale enters the battlefield

Grand Arbiter Augustin IV - [Foil] Double Masters 2022 (2X2) FUT you may add an amountWhite 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.