Spawn of Sani

When Spawn of Sani enters the battlefield, create a
Baby token and attach it to this creature. (It's an artifact with "{1}, {t}, Sacrifice this artifact, if the
number of counters on it reached a value of nine:
Search your library for a creature and put in on the battlefield under your control.")
{t}: Create a Baby token, if none is attached.
At the beginning of your upkeep, put a +1 counter
on the attached Baby token.