This point-based system prevents snowballing, which can happen in traditional TCG games when a player gains an early advantage
Wrenn and Six and Omnath, Locus of Creation decks are far happier playing a bundle of fetch lands than they are drawing Triomes naturally
The World Shaper precon with Hearthhull, the Worldseed at the helm, for instance, is an incredibly powerful deck
It refers to the distribution of the mana costs in your deck, ensuring you have something to play on each turn of the game
Magic: The GatheringFinal Fantasy represents their temporary assistance via Sagas, a form of Enchantment Creature that triggers various effects each turn, but only survives for a few turns
Coming into play tapped prevents most decks from wanting more than a couple to help curve out, but you only need one of two to get perfect mana in most cases