Usually, by the end of set design, you're playtesting once a week or more
Number 188 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Pioneer, Standard Rulings (11/10/2020) To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Blasphemous Act)
Fiber Jar essentially lets you start your turn with minimal interference, so you can swarm the field with monsters and hit for the game easily.
Oh, and for those who dont know/dont care (SHAME ON YOU), Evolution the biggest fighting game tournament of the year is this weekend
I think we can agree that most Commander decks arent built to try to kill the table in the first four or five turns of the game, so your mana curve is highly likely to require a larger percentage of lands
Any red deck can make room for a copy there aren't many games where you wont have a good opportunity to fire this off, efficiently answering a creature or artifact
