Michael Jordan

Flying, vigilance
When this creature enters, double the power of each
other creature you control until end of turn.
You may exert Michael Jordan as it attacks. When
you do, Michael Jordan gains indestructible and
trample until end of turn.
When Michael Jordan deals combat damage to an opponent, put a Championship Ring counter him.
When Michael Jordan has 3 or more counters,
return it to its owner's hand.