Cavern of Souls Land
As Cavern of Souls enters the battlefield, choose a creature type.
![](/images/magic/manas/micro/t.gif)
: Add
![](/images/magic/manas/micro/c.gif)
to your mana pool.
![](/images/magic/manas/micro/t.gif)
: Add one mana of any color to your mana pool. Spend this mana only to cast creature spells of the chosen type, and that spell can't be countered.