I honestly think the best guide to start with depends on your interests
As long as you get poison counters onto your opponents, thats all you need to make Vishgraz into a threat for commander damage, too
shot up 574% between 2019 and 2020, with collectors looking to buy that Pikachu card they coveted as a child with money unspent during the pandemic
Any card that comes out of the boosters or the theme decks (the sealed product) that should be in my Modern Staples cube will be moved from this selection to that cube
Obviously, not every deck can reliably cast Urgent Necropsy, and its a bit inefficient if it isnt killing multiple things
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 this ability)