Main changes include:
Goblin (RB) and Cleric archetype (BW) removed = Too streamlined draft experience.
Improved fixing (especially for enemy pairs) = Addition of OG duals (enemy) and Mox Diamond. Quick fixing is crucial for making aggressive decks, such as RW and BW, being able to compete with slower ones.
All looting/direct-into-GY outlets removed outside of U = Helps UB, RB and GB with color identity, where UB facilitates combo reanimation, while RB and GB mostly facilitate value reanimation.