What are the changes to the Commander Mulligan rules in 2018 and how do they impact gameplay for players?

In 2018, changes were made to the Commander Mulligan rules in Magic: The Gathering. Players are now allowed to take a "partial Paris" mulligan, where they can shuffle their hand back into their library and draw one less card. This change allows players to have more flexibility in their starting hands and can help mitigate the impact of bad opening hands. Overall, these changes make gameplay more balanced and enjoyable for players.