Cavern of Souls - Avacyn Restored (AVR)As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

create a 2/2 green Wolf creature token

Unaware of Lorwyn's diversity

Haste As long as Anger is in your graveyard and you control a Mountain

Thick smoke billows and twists to form disturbing faces that cackle and click their teeth to the popping embers

It started as a mere drop of water

it fights Hans Eriksson

As the Simic released more of their krasis experiments

As long as Necrotic Ooze is on the battlefield

"Optimists see the world as they wish it to be

Let us pray

Shuffle White Sun's Zenith into its owner's library

Flying Whenever you cast a creature spell with mana value 3 or less