Wukong Samadhi

At the beginning of each end step, remove a
+1/+1 counter or a -1/-1 counter from Wukong Samadhi. If you can't, sacrifice it.
Wukong Samadhi has persist as long as it has no
-1/-1 counters on it and has one or more +1/+1 counters on it and has undying if it has no +1/+1 counters on it and one or more -1/-1 counters on
it. If it has one or more +1/+1 counters on it and
one or more -1/-1 counters on it, it has first strike
and flying.