Critter of the Stream

{g/u}{g/u}{g/u} Target creature gets put into
exile with 3 time counters on it. When you
draw a card it loses 1 time counter. When the
creature has no time counters it comes back
into play with 3 +1/+1 counters on it.
{u} Draw a card
{g} This creature gets a +1/+1 counter
{1}{g} Summon a 0/5 log token