Cirno, Ice Fairy

Fairy Immortality: If this creature would die
or be exiled, it enters the command zone instead. It
costs {u}{u} more to cast for each time it has entered
the command zone
Flying
Cirno, Ice Fairy enters the battlefield with a
+1/+1 counter for each {u}{u} spent to cast it.
When Cirno, Ice Fairy enters the battlefield, distribute X stun counters amongst any number
of target permanents, where X is the amount of {u} spent to cast it.