plusle pokemon card (PROMO-B #27/48, Promo) Plusle (28) Pokemon - Sun & Moon

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

Its Mega Brave attack hits for 270 damage, putting it in knockout range against most cards in the format

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

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