Rodmilla, Caustic Stepmother

Deathtouch, reach, undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
At the end step, add 1 mana debt and create a 1/2 green spider token with reach.
Why is always so messy in here?