Whether its a three-color Commander or some extra fetch lands to smooth out your mana base, extra colors can usher a little extra risk in exchange for a big reward
Every Magic: The Gathering FINAL FANTASY Play Booster contains an art card (which you can learn more about here) or a non-foil double-sided token featuring one of the set's 23 full-art tokens or the emblem created by Sephiroth, One-Winged Angel on each side
Well, Surrak Dragonclaw is the uncounterable commander for you: Now all your creature spells are uncounterable
The deck wins by flooding the board with artifacts and then using combos and smart plays to keep your opponents on their toes
A lot of balance and care goes into choosing the cost of a card, more than I can express here, but looking for similar effects on existing Magic cards can give you an idea of a fair costfor example, a ramp spell that puts two lands into play ought to cost 4 mana, per Explosive Vegetation