Gönndalf der Blaue

Evolve (Whenever a creature enters the
battlefield under your control, if that creature
has greater power or toughness than this
creature, put a +1/+1 counter on this
creature.)
Whenever one or more +1/+1 counters
are put on Goenndalf der Blaue, you may
create a 1/1 green snake creature token.