Moving between those color combinations is just a matter of changing your ratio of different lands
Now that Ive laid the foundations (*ducks*), its time for the set review
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Even outside of tokens, this can serve as a sneaky finisher
Each Crystal costs four mana, reduces the cost of spells of a certain color, has a static effect, and a more powerful effect that costs six mana and needs to be tapped to activate
Helm of the Ghastlord is already a great card to slam onto any Dimir creature out there, but that overlooks the combo potential that this card also brings with it