A mana curve calculator is a tool used in collectible card games (CCGs) to help players determine the optimal distribution of mana costs in their decks. The mana curve is a graph that shows the number of cards in a deck with each mana cost. By analyzing the mana curve, players can identify any potential problems with their deck, such as too many high-cost cards or not enough low-cost cards.
Mana curve calculators are important because they can help players improve the consistency and efficiency of their decks. A deck with a good mana curve will be able to play its cards smoothly and consistently, without running out of mana or drawing too many high-cost cards. This can give players a significant advantage in competitive play.