"Modern Masters 2017 Edition", "can't be countered" (2)
This spell can't be countered.
Destroy target nonland permanent with mana value 3 or less.
As Cavern of Souls enters, choose a creature type.
: Add .
: 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.
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: Add 
.: 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.