Canopies of Kephriam

When Canopies of Kephriam enters the
battlefield, sacrifice it unless you sacrifice another
land card.
Canopies of Kephriam enters the battlefield
tapped.
Elves you control have indestructible.
{t}: Add {1} for each Elf you've cast this turn.
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"All friends of the Elves shall find refuge and strength within our walls, for all mana here is rich with unity."
-Meffrella Kephriam