Nox, Lord of Time

Flying, Lifelink
Whenever any player casts a spell, put a time
counter on Nox, Lord of Time. Whenever Nox,
Lord of Time reaches 12 time counters at any
time, do one of the following, then remove all
time counters on Nox, Lord of Time:
•On an opponent's turn: Counter the last
spell that was played on the stack. End the turn.
•On your turn: Take an extra turn after this one.