To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Serah Farron or Crystallized Serah's first abilities)
The Mono-Black card started at around $40 for Sheoldreds regular version and has since risen to around $70
Theres definitely some age showing in terms of how it interacts with the current Modern format, but the fundamentals are still good
Greenwarden doubles Teval's triggers, Ripples of Undeath guarantees one extra Zombie Druid each turn for the cost of one colorless mana and three life, and Craterhoof is exactly what you know it is
Okay, it's not actually the rules, it's the law
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