Tiamalus, the Runehater

Tiamalus, the Runehater gets -1/-1 for each spell
or ability on the stack.
At the beginning of each end step, if no spells
were cast this turn, put a +1/+1 counter on
Tiamalus, the Runehater.
{u}, Exile Tiamalus, the Runehater from your graveyard: Counter target spell or ability.