Multiplying Asp-Beast

Multiplying Asp-Beast enters the battlefield with a +1/+1 counter on it.
Deathtouch
At the beginning of your upkeep, double the number of +1/+1 counters on Multiplying Asp-Beast.
At the beginning of your end step, if Multiplying Asp-Beast did not deal damage this turn and its toughness is greater than 7, sacrifice it.
It only grows hungrier with each new head...