Kihl, Obliteration Mage

Kihl, Obliteration Mage can't be countered.
Flash, Indestructible
At the beginning of each upkeep, put an Obliteration counter on target nonland permanent. When Kihl, Obliteration Mage leaves the battlefield, destroy each permanent that has an Obliteration counter on it and they cannot be regenerated. Exile Kihl, Obliteration Mage.