If you did bargain and sacrifice an artifact, enchantment or token of some sort you'll cast it for free if its mana value was four or less
As I considered various characters to create legendary creatures for in Modern Horizons 2, Garth One-Eye piqued my interested
Some people make a career out of market manipulation, creating mathematical models to analyze the growth of cards' worth, and predict the market value of both individual cards, and entire sets of cards
As if that isnt enough, Ral, Cracking Wit, protects himself by making Otters with prowess, has a fairly costly Brainstorm effect, and then a massively powerful emblem that gives all your instants and sorcery spells storm, which is huge for Magic
Yes, if youd like to compete, youll probably want the most broken deck possible, but thats not the direction we look
Each turn, you can increase the number of tokens you create if your graveyard is full of assassin cards