Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
: Add or to your mana pool.
Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.
Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.
Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest.
Sunpetal Grove enters the battlefield tapped unless you control a Forest or a Plains.
: Add 
or 
to your mana pool.