It is really lili's fault that the kronberger list can't play Lage. -1 Maze -1 Dual +1 Stage +1 depths downgrades a black land to a colorless land. The manabase is strained as is at 1BB. You could "downgrade" other lands but that would probably be even worse. Otherwise Lage is great in the shell. Stage is a fine land on it's own with the land toolbox.
I'm playing this
list. There is no lili (personal preference) so I don't have the mana constraints and am able to make use of this extra angle of attack.