Youre actually helping your opponent if you mill them and dont kill them with it, so The Water Crystal looks like the worst of the Crystal cycle to me
While the Bauble might not be as format-warping as cards like Jegantha and Psychic Frog, it can be just as oppressive and frustrating to play against, especially since it is just one mana to play and can replace itself on later turns once you draw an extra copy or two and no longer need the protection
The latter title is a fun nod to Ellie referring to herself as the Brick Master in The Last of Us expansion Left Behind, after beating Riley in a game of brick-throwing
Four mana is still a lot, however
Land Enchantment Ramp One of the more unusual schools of ramp available in Commander is the series of enchantments that attach to your lands and let them produce extra mana
But the catch is that any bean traded that round must be planted, which puts additional pressure on the small number of fields each player has