Youll still want a nice bell curve of mana costs in your cards, but unless youre playing cEDH (competitive EDH, a hellscape where games end before youve even finished shuffling - fun, but in a horribly different way), you can have a bit more fun
The value of X is calculated only once, as Cloud of Darkness's last ability resolves
Mirror March Card Name: Mirror March Mana Cost: 5 Red Converted Mana Cost: 6 Types: Enchantment Card Text: Whenever a nontoken creature enters the battlefield under your control, flip a coin until you lose a flip
Enthusiasts who thrive on the thrill of the hunt and seek the pinnacle of rarity will covet this masterpiece
If you have several possible ways to Sacrifice a creature, only one takes effect
It's not a bad card, it's just not good