Cavern of Souls - The List (PLIST)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.

Whenever Cordial Vampire or another creature dies

Flying Lifelink (Damage dealt by this creature also causes you to gain that much life

Destroy target creature

Flying When Sphinx of Uthuun enters the battlefield

"The elves tend the forest

You may have Clever Impersonator enter the battlefield as a copy of any nonland permanent on the battlefield

{T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control

the slivers have become everything he wanted them to be: mindless instruments of destruction and despair

you may gain life equal to the number of charge counters on Clearwater Goblet

counter that spell or ability unless its controller pays {1}

add an additional {B}

At the beginning of each end step