Weaknesses to plan around Black still struggles with enchantments, though Feed the Swarm gives it a situational answer
Sigh, here's your Serra Ascendant, Serra Avatar, Sphinx's Revelation, Absorb, yadda yadda, and some cards to spend life on and then either the life gain winning conditions like Felidar Sovereign or the auto-kill Black enchantments like Sanguine Bond and Exquisite Blood
Mana Rocks Mana rocks arent just Sol Ring plus Signets. This guide shows how to evaluate rocks by floor, ceiling, and average, then match them to your curve, colors, commander, and bracket
Generally, the success and pace of your games will be determined by when you draw your discard payoffs, which let you go from cycling to go deeper to cycling to win