After all, all three of these lands can produce any color of mana at the cost of one life
I think it will mostly see play in decks aimed more at the moderate competition level, not at the highest level of competition, where there are decks with capabilities to easily dish out damage that dont rely on a character questing
A Comprehensive Guide to MTG Card Rarity Theres a certain something in the hunt, isnt there
While every other FF is represented in the general boosters and the general set of cards, the sprawling nature of Commander Decks means that the four FFs that have a Commander Deck themed around them naturally have a huge advantage - their characters, stories, and worlds are far more heavily represented than the others
It adds nothing to the board, and making spells cost an additional mana isnt a particularly desirable effect unless it comes with a creature attached
These are the defining rules that make a deck legal but its important to note there are further considerations to be made when creating a functional, powerful deck