(: Add .)Mistveil Plains enters tapped., : Put target card from your graveyard on the bottom of your library. Activate only if you control two or more white permanents.
: Add .When Flagstones of Trokair is put into a graveyard from the battlefield, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.
Dark Depths enters with ten ice counters on it.: Remove an ice counter from Dark Depths.When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.
Whenever a Bird is put into your graveyard from the battlefield, put a feather counter on Soulcatchers' Aerie.Bird creatures get +1/+1 for each feather counter on Soulcatchers' Aerie.