The Syryn Hydra

The Syryn Hydra enters the battlefield with X
+1/+1 counters on it.
At the beginning of your endstep, create a
number of 0/1 green Snake creature tokens with
deathtouch equal to the number of +1/+1
counters on The Syryn Hydra, then put a +1/+1
counter on each creature you control.
Sacrifice another creature: Scry 1.